Oil Prices During Ronald Reagan's Presidency (1981–1989)
Ronald Reagan served two terms, from January 20, 1981 to January 20, 1989. The terms are measured with different EIA series (the monthly U.S. crude oil first purchase price for the first, daily WTI for the second), so their figures are not compared.
Crude oil is traded in a global market (EIA). The figures here describe what prices did between inauguration dates; they do not measure the effect of any president or policy.
On this page: First term (1981–1985) · Second term (1985–1989)
First term: Jan 20, 1981 – Jan 20, 1985
First purchase price, first in term
$34.30
February 1981
First purchase price, last in term
$25.05
December 1984
Change
−27.0%
−$9.25
Term average
$28.07
$97.21 in September 2026 dollars
EIA's daily WTI series begins in 1986, so this term is measured with the monthly U.S. crude oil first purchase price: the average price paid for domestic crude oil when it first changed hands, a different series that is not comparable with WTI spot prices. In February 1981, the first full calendar month of the term, it was $34.30 per barrel; in December 1984, the last, it was $25.05, down $9.25 (27.0%) over the term.
It averaged $28.07 over 47 months, ranging from $25.05 in December 1984 to $34.59 in March 1981.
Monthly first purchase price, February 1981 – December 1984
Chart data table (47 rows)
| Period | First purchase price |
|---|---|
| December 1984 | $25.05 |
| November 1984 | $25.44 |
| October 1984 | $25.92 |
| September 1984 | $25.97 |
| August 1984 | $26.02 |
| July 1984 | $26.11 |
| June 1984 | $26.09 |
| May 1984 | $26.00 |
| April 1984 | $25.93 |
| March 1984 | $26.05 |
| February 1984 | $26.06 |
| January 1984 | $25.93 |
| December 1983 | $25.88 |
| November 1983 | $26.09 |
| October 1983 | $26.04 |
| September 1983 | $26.08 |
| August 1983 | $26.03 |
| July 1983 | $25.86 |
| June 1983 | $25.98 |
| May 1983 | $26.08 |
| April 1983 | $25.85 |
| March 1983 | $26.08 |
| February 1983 | $26.41 |
| January 1983 | $27.22 |
| December 1982 | $28.02 |
| November 1982 | $28.74 |
| October 1982 | $28.76 |
| September 1982 | $27.99 |
| August 1982 | $27.99 |
| July 1982 | $28.09 |
| June 1982 | $28.12 |
| May 1982 | $27.66 |
| April 1982 | $27.64 |
| March 1982 | $28.31 |
| February 1982 | $29.73 |
| January 1982 | $30.80 |
| December 1981 | $30.80 |
| November 1981 | $30.97 |
| October 1981 | $30.98 |
| September 1981 | $31.10 |
| August 1981 | $31.10 |
| July 1981 | $31.10 |
| June 1981 | $31.68 |
| May 1981 | $32.73 |
| April 1981 | $33.92 |
| March 1981 | $34.59 |
| February 1981 | $34.30 |
In September 2026 dollars (CPI-U), the term began and ended at $131.48 and $80.16, and averaged $97.21. Of the 3 terms measured with the monthly U.S. crude oil first purchase price, this term's average is the highest both in nominal terms and adjusted for inflation.
The average was higher by $15.03 (115.3%) than in the previous term, Jimmy Carter's term ($13.04).
Highs, lows and term figures
| Measure | First purchase price |
|---|---|
| First observation in the term | $34.30 February 1981 |
| Last observation in the term | $25.05 December 1984 |
| Change | −$9.25 |
| Change, % | −27.0% |
| Term average | $28.07 |
| High | $34.59 March 1981 |
| Low | $25.05 December 1984 |
| Months | 47 |
| First observation, September 2026 $ | $131.48 |
| Last observation, September 2026 $ | $80.16 |
| Term average, September 2026 $ | $97.21 |
Monthly averages
| Month | First purchase price | Real |
|---|---|---|
| February 1981 | $34.30 | $131.48 |
| March 1981 | $34.59 | $131.69 |
| April 1981 | $33.92 | $128.27 |
| May 1981 | $32.73 | $122.81 |
| June 1981 | $31.68 | $117.82 |
| July 1981 | $31.10 | $114.40 |
| August 1981 | $31.10 | $113.53 |
| September 1981 | $31.10 | $112.43 |
| October 1981 | $30.98 | $111.76 |
| November 1981 | $30.97 | $111.37 |
| December 1981 | $30.80 | $110.40 |
| January 1982 | $30.80 | $110.05 |
| February 1982 | $29.73 | $105.89 |
| March 1982 | $28.31 | $100.94 |
| April 1982 | $27.64 | $98.14 |
| May 1982 | $27.66 | $97.28 |
| June 1982 | $28.12 | $97.68 |
| July 1982 | $28.09 | $97.07 |
| August 1982 | $27.99 | $96.53 |
| September 1982 | $27.99 | $96.33 |
| October 1982 | $28.76 | $98.68 |
| November 1982 | $28.74 | $98.81 |
| December 1982 | $28.02 | $96.73 |
| January 1983 | $27.22 | $93.78 |
| February 1983 | $26.41 | $90.89 |
| March 1983 | $26.08 | $89.76 |
| April 1983 | $25.85 | $88.34 |
| May 1983 | $26.08 | $88.58 |
| June 1983 | $25.98 | $87.98 |
| July 1983 | $25.86 | $87.22 |
| August 1983 | $26.03 | $87.53 |
| September 1983 | $26.08 | $87.26 |
| October 1983 | $26.04 | $86.87 |
| November 1983 | $26.09 | $86.87 |
| December 1983 | $25.88 | $86.08 |
| January 1984 | $25.93 | $85.74 |
| February 1984 | $26.06 | $85.75 |
| March 1984 | $26.05 | $85.55 |
| April 1984 | $25.93 | $84.74 |
| May 1984 | $26.00 | $84.72 |
| June 1984 | $26.09 | $84.77 |
| July 1984 | $26.11 | $84.51 |
| August 1984 | $26.02 | $83.90 |
| September 1984 | $25.97 | $83.34 |
| October 1984 | $25.92 | $82.94 |
| November 1984 | $25.44 | $81.40 |
| December 1984 | $25.05 | $80.16 |
Only months lying entirely within the term are listed.
Annual averages
| Year | First purchase price | Real |
|---|---|---|
| 1981 ‡ | $31.77 | $117.76 |
| 1982 | $28.52 | $99.58 |
| 1983 | $26.19 | $88.60 |
| 1984 | $25.88 | $83.93 |
‡ Only part of the year falls in the term; the figure is the whole calendar year's average.
Compared with adjacent terms
| Term | First | Last | Change | Average | Average, real | Average vs this term |
|---|---|---|---|---|---|---|
| Jimmy Carter, 1977–1981 | $8.56 | $25.83 | +201.8% | $13.04 | $60.33 | −53.6% |
| This term (1981–1985) | $34.30 | $25.05 | −27.0% | $28.07 | $97.21 | — |
The next term, Ronald Reagan, second term, 1985–1989, is measured with EIA's daily WTI spot price, a different series, so it is not compared here.
Second term: Jan 20, 1985 – Jan 20, 1989
Public ceremony held Jan 21, 1985; the term began on Jan 20, 1985.
WTI, first in term
$25.56
Jan 2, 1986
WTI, last in term
$19.28
Jan 19, 1989
Change
−24.6%
−$6.28
Term average
$16.77
$49.58 in September 2026 dollars
The first WTI spot price EIA published in this term was $25.56 per barrel on Jan 2, 1986 (EIA's daily WTI series begins on that date, so the first 11 months of the term have no daily prices). The last price published before the next inauguration was $19.28 on Jan 19, 1989, down $6.28 (24.6%) over the term.
WTI averaged $16.77 across 775 published daily prices, with a high of $26.53 on Jan 6, 1986 and a low of $10.25 on Mar 31, 1986. It was below $20 on 709 days (91% of the term's published days).
Daily spot prices, Jan 2, 1986 – Jan 19, 1989
Chart data table (778 rows)
| Period | WTI | Brent |
|---|---|---|
| Jan 19, 1989 | $19.28 | $18.10 |
| Jan 18, 1989 | $19.20 | $17.95 |
| Jan 17, 1989 | $19.03 | $17.78 |
| Jan 16, 1989 | $18.88 | $17.50 |
| Jan 13, 1989 | $18.49 | $17.40 |
| Jan 12, 1989 | $18.11 | $16.85 |
| Jan 11, 1989 | $18.16 | $16.90 |
| Jan 10, 1989 | $17.80 | $16.75 |
| Jan 9, 1989 | $17.74 | $17.00 |
| Jan 6, 1989 | $17.56 | $16.85 |
| Jan 5, 1989 | $17.45 | $16.58 |
| Jan 4, 1989 | $16.99 | $16.53 |
| Jan 3, 1989 | $17.38 | $16.40 |
| Dec 30, 1988 | $17.12 | $16.23 |
| Dec 29, 1988 | $16.81 | $15.90 |
| Dec 28, 1988 | $17.03 | $16.10 |
| Dec 27, 1988 | $16.98 | $16.25 |
| Dec 23, 1988 | $16.63 | $15.38 |
| Dec 22, 1988 | $17.36 | $15.25 |
| Dec 21, 1988 | $17.27 | $15.33 |
| Dec 20, 1988 | $17.68 | $15.28 |
| Dec 19, 1988 | $16.24 | $15.30 |
| Dec 16, 1988 | $16.81 | $15.60 |
| Dec 15, 1988 | $16.39 | $15.58 |
| Dec 14, 1988 | $16.33 | $15.35 |
| Dec 13, 1988 | $15.93 | $15.18 |
| Dec 12, 1988 | $16.08 | $15.20 |
| Dec 9, 1988 | $15.90 | $14.90 |
| Dec 8, 1988 | $15.48 | $15.05 |
| Dec 7, 1988 | $15.80 | $14.70 |
| Dec 6, 1988 | $15.51 | $14.40 |
| Dec 5, 1988 | $15.36 | $14.73 |
| Dec 2, 1988 | $15.69 | $14.80 |
| Dec 1, 1988 | $15.63 | $14.93 |
| Nov 30, 1988 | $15.42 | $14.35 |
| Nov 29, 1988 | $15.00 | $14.25 |
| Nov 28, 1988 | $14.93 | $14.73 |
| Nov 25, 1988 | $15.43 | $14.70 |
| Nov 24, 1988 | $14.11 | $12.98 |
| Nov 23, 1988 | $14.11 | $13.33 |
| Nov 22, 1988 | $14.78 | $13.35 |
| Nov 21, 1988 | $13.73 | $12.13 |
| Nov 18, 1988 | $13.47 | $12.08 |
| Nov 17, 1988 | $13.30 | $12.05 |
| Nov 16, 1988 | $13.68 | $12.70 |
| Nov 15, 1988 | $14.03 | $13.00 |
| Nov 14, 1988 | $14.25 | $13.00 |
| Nov 11, 1988 | $13.99 | $13.03 |
| Nov 10, 1988 | $13.99 | $13.03 |
| Nov 9, 1988 | $13.88 | $12.70 |
| Nov 8, 1988 | $13.70 | $12.60 |
| Nov 7, 1988 | $14.08 | $12.75 |
| Nov 4, 1988 | $14.04 | $12.75 |
| Nov 3, 1988 | $13.89 | $12.50 |
| Nov 2, 1988 | $13.78 | $12.35 |
| Nov 1, 1988 | $13.52 | $12.18 |
| Oct 31, 1988 | $13.54 | $12.60 |
| Oct 28, 1988 | $13.79 | $12.60 |
| Oct 27, 1988 | $13.67 | $12.33 |
| Oct 26, 1988 | $13.45 | $12.08 |
| Oct 25, 1988 | $13.36 | $12.08 |
| Oct 24, 1988 | $12.94 | $12.20 |
| Oct 21, 1988 | $14.22 | $13.48 |
| Oct 20, 1988 | $14.44 | $13.50 |
| Oct 19, 1988 | $15.33 | $13.35 |
| Oct 18, 1988 | $14.63 | $12.90 |
| Oct 17, 1988 | $15.16 | $13.55 |
| Oct 14, 1988 | $14.90 | $13.20 |
| Oct 13, 1988 | $14.26 | $12.55 |
| Oct 12, 1988 | $14.02 | $12.45 |
| Oct 11, 1988 | $13.63 | $12.35 |
| Oct 10, 1988 | $13.59 | $12.20 |
| Oct 7, 1988 | $12.99 | $11.35 |
| Oct 6, 1988 | $12.62 | $11.30 |
| Oct 5, 1988 | $12.58 | $11.20 |
| Oct 4, 1988 | $13.03 | $11.65 |
| Oct 3, 1988 | $13.03 | $11.60 |
| Sep 30, 1988 | $13.33 | $11.93 |
| Sep 29, 1988 | $13.91 | $12.50 |
| Sep 28, 1988 | $14.07 | $12.75 |
| Sep 27, 1988 | $14.22 | $12.58 |
| Sep 26, 1988 | $14.16 | $13.10 |
| Sep 23, 1988 | $14.26 | $13.20 |
| Sep 22, 1988 | $15.25 | $13.20 |
| Sep 21, 1988 | $15.19 | $13.05 |
| Sep 20, 1988 | $15.08 | $13.15 |
| Sep 19, 1988 | $14.72 | $12.85 |
| Sep 16, 1988 | $14.50 | $13.23 |
| Sep 15, 1988 | $14.86 | $13.50 |
| Sep 14, 1988 | $15.38 | $13.90 |
| Sep 13, 1988 | $14.55 | $13.40 |
| Sep 12, 1988 | $14.48 | $12.70 |
| Sep 9, 1988 | $14.14 | $13.25 |
| Sep 8, 1988 | $14.51 | $13.30 |
| Sep 7, 1988 | $14.29 | $13.18 |
| Sep 6, 1988 | $14.25 | $13.35 |
| Sep 5, 1988 | $14.79 | $13.68 |
| Sep 2, 1988 | $14.79 | $14.00 |
| Sep 1, 1988 | $15.05 | $14.15 |
| Aug 31, 1988 | $15.19 | $14.40 |
| Aug 30, 1988 | $15.39 | $14.45 |
| Aug 29, 1988 | $15.24 | $14.48 |
| Aug 26, 1988 | $15.35 | $14.50 |
| Aug 25, 1988 | $15.33 | $14.63 |
| Aug 24, 1988 | $15.55 | $14.85 |
| Aug 23, 1988 | $15.71 | $14.80 |
| Aug 22, 1988 | $15.75 | $15.03 |
| Aug 19, 1988 | $15.77 | $14.85 |
| Aug 18, 1988 | $15.59 | $14.78 |
| Aug 17, 1988 | $15.46 | $14.75 |
| Aug 16, 1988 | $15.51 | $14.85 |
| Aug 15, 1988 | $15.59 | $14.80 |
| Aug 12, 1988 | $15.54 | $14.98 |
| Aug 11, 1988 | $15.75 | $15.13 |
| Aug 10, 1988 | $15.65 | $15.10 |
| Aug 9, 1988 | $15.56 | $15.40 |
| Aug 8, 1988 | $15.84 | $15.48 |
| Aug 5, 1988 | $15.31 | $14.85 |
| Aug 4, 1988 | $15.12 | $14.50 |
| Aug 3, 1988 | $15.20 | $15.00 |
| Aug 2, 1988 | $15.57 | $15.35 |
| Aug 1, 1988 | $16.07 | $15.60 |
| Jul 29, 1988 | $16.37 | $15.75 |
| Jul 28, 1988 | $16.08 | $15.70 |
| Jul 27, 1988 | $16.18 | $15.45 |
| Jul 26, 1988 | $15.99 | $15.38 |
| Jul 25, 1988 | $16.09 | $15.80 |
| Jul 22, 1988 | $16.27 | $15.83 |
| Jul 21, 1988 | $16.28 | $15.63 |
| Jul 20, 1988 | $15.76 | $15.48 |
| Jul 19, 1988 | $15.16 | $14.93 |
| Jul 18, 1988 | $15.84 | $15.00 |
| Jul 15, 1988 | $14.85 | $14.25 |
| Jul 14, 1988 | $14.84 | $14.10 |
| Jul 13, 1988 | $14.35 | $14.10 |
| Jul 12, 1988 | $14.61 | $14.00 |
| Jul 11, 1988 | $14.56 | $14.63 |
| Jul 8, 1988 | $15.42 | $15.05 |
| Jul 7, 1988 | $15.83 | $15.50 |
| Jul 6, 1988 | $15.44 | $14.50 |
| Jul 5, 1988 | $15.11 | $13.98 |
| Jul 4, 1988 | — | $14.05 |
| Jul 1, 1988 | $14.92 | $13.95 |
| Jun 30, 1988 | $15.20 | $14.18 |
| Jun 29, 1988 | $15.37 | $14.55 |
| Jun 28, 1988 | $16.01 | $14.83 |
| Jun 27, 1988 | $15.86 | $14.93 |
| Jun 24, 1988 | $16.03 | $15.15 |
| Jun 23, 1988 | $15.86 | $15.18 |
| Jun 22, 1988 | $16.03 | $15.13 |
| Jun 21, 1988 | $15.82 | $15.00 |
| Jun 20, 1988 | $16.02 | $15.00 |
| Jun 17, 1988 | $16.43 | $15.48 |
| Jun 16, 1988 | $16.62 | $15.43 |
| Jun 15, 1988 | $16.56 | $15.70 |
| Jun 14, 1988 | $16.85 | $15.85 |
| Jun 13, 1988 | $16.43 | $15.53 |
| Jun 10, 1988 | $16.70 | $15.85 |
| Jun 9, 1988 | $17.09 | $16.30 |
| Jun 8, 1988 | $17.35 | $16.28 |
| Jun 7, 1988 | $17.32 | $16.23 |
| Jun 6, 1988 | $17.28 | $16.25 |
| Jun 3, 1988 | $17.51 | $16.45 |
| Jun 2, 1988 | $17.67 | $16.33 |
| Jun 1, 1988 | $17.60 | $16.33 |
| May 31, 1988 | $17.54 | $16.20 |
| May 30, 1988 | $17.45 | $16.23 |
| May 27, 1988 | $17.45 | $16.25 |
| May 26, 1988 | $17.54 | $16.18 |
| May 25, 1988 | $17.39 | $16.18 |
| May 24, 1988 | $17.04 | $16.30 |
| May 23, 1988 | $17.01 | $16.23 |
| May 20, 1988 | $17.41 | $16.45 |
| May 19, 1988 | $17.43 | $16.25 |
| May 18, 1988 | $17.39 | $16.40 |
| May 17, 1988 | $17.72 | $16.60 |
| May 16, 1988 | $17.70 | $16.60 |
| May 13, 1988 | $17.53 | $16.50 |
| May 12, 1988 | $17.49 | $16.40 |
| May 11, 1988 | $17.48 | $16.48 |
| May 10, 1988 | $17.50 | $16.38 |
| May 9, 1988 | $17.56 | $16.50 |
| May 6, 1988 | $17.63 | $16.45 |
| May 5, 1988 | $17.41 | $16.15 |
| May 4, 1988 | $17.23 | $16.15 |
| May 3, 1988 | $17.30 | $16.08 |
| May 2, 1988 | $17.12 | $15.95 |
| Apr 29, 1988 | $18.10 | $16.60 |
| Apr 28, 1988 | $17.91 | $16.88 |
| Apr 27, 1988 | $18.32 | $17.40 |
| Apr 26, 1988 | $18.54 | $17.18 |
| Apr 25, 1988 | $18.36 | $17.13 |
| Apr 22, 1988 | $18.13 | $17.15 |
| Apr 21, 1988 | $18.34 | $17.00 |
| Apr 20, 1988 | $17.93 | $16.78 |
| Apr 19, 1988 | $17.92 | $17.05 |
| Apr 18, 1988 | $18.50 | $17.45 |
| Apr 15, 1988 | $18.32 | $16.85 |
| Apr 14, 1988 | $18.40 | $16.65 |
| Apr 13, 1988 | $18.12 | $16.55 |
| Apr 12, 1988 | $18.06 | $16.48 |
| Apr 11, 1988 | $17.87 | $16.20 |
| Apr 8, 1988 | $16.87 | $15.55 |
| Apr 7, 1988 | $17.05 | $15.53 |
| Apr 6, 1988 | $16.80 | $15.38 |
| Apr 5, 1988 | $16.72 | $15.50 |
| Apr 4, 1988 | $16.99 | — |
| Mar 31, 1988 | $17.09 | $15.65 |
| Mar 30, 1988 | $17.06 | $15.70 |
| Mar 29, 1988 | $17.08 | $15.60 |
| Mar 28, 1988 | $17.05 | $15.55 |
| Mar 25, 1988 | $17.07 | $15.45 |
| Mar 24, 1988 | $16.73 | $15.65 |
| Mar 23, 1988 | $16.58 | $15.40 |
| Mar 22, 1988 | $16.02 | $15.03 |
| Mar 21, 1988 | $16.52 | $15.38 |
| Mar 18, 1988 | $16.61 | $14.93 |
| Mar 17, 1988 | $16.39 | $14.43 |
| Mar 16, 1988 | $16.03 | $14.45 |
| Mar 15, 1988 | $15.81 | $14.30 |
| Mar 14, 1988 | $15.57 | $14.28 |
| Mar 11, 1988 | $16.20 | $14.88 |
| Mar 10, 1988 | $16.04 | $14.48 |
| Mar 9, 1988 | $15.52 | $13.98 |
| Mar 8, 1988 | $15.58 | $13.80 |
| Mar 7, 1988 | $15.35 | $13.90 |
| Mar 4, 1988 | $15.63 | $14.00 |
| Mar 3, 1988 | $15.35 | $14.00 |
| Mar 2, 1988 | $15.69 | $13.80 |
| Mar 1, 1988 | $15.57 | $14.18 |
| Feb 29, 1988 | $15.98 | $14.73 |
| Feb 26, 1988 | $15.77 | $14.65 |
| Feb 25, 1988 | $15.86 | $14.85 |
| Feb 24, 1988 | $16.58 | $15.35 |
| Feb 23, 1988 | $16.80 | $15.58 |
| Feb 22, 1988 | $16.64 | $15.38 |
| Feb 19, 1988 | $16.73 | $15.55 |
| Feb 18, 1988 | $16.50 | $15.48 |
| Feb 17, 1988 | $16.62 | $15.85 |
| Feb 16, 1988 | $16.80 | $15.63 |
| Feb 15, 1988 | $16.84 | $15.68 |
| Feb 12, 1988 | $16.84 | $15.75 |
| Feb 11, 1988 | $17.17 | $16.10 |
| Feb 10, 1988 | $17.12 | $16.13 |
| Feb 9, 1988 | $17.38 | $16.40 |
| Feb 8, 1988 | $17.70 | $16.50 |
| Feb 5, 1988 | $17.34 | $16.10 |
| Feb 4, 1988 | $17.17 | $16.18 |
| Feb 3, 1988 | $17.12 | $16.15 |
| Feb 2, 1988 | $16.92 | $16.18 |
| Feb 1, 1988 | $16.83 | $16.10 |
| Jan 29, 1988 | $16.97 | $16.28 |
| Jan 28, 1988 | $16.94 | $16.10 |
| Jan 27, 1988 | $16.64 | $16.13 |
| Jan 26, 1988 | $16.96 | — |
| Jan 25, 1988 | $17.11 | $16.45 |
| Jan 22, 1988 | $16.99 | $16.70 |
| Jan 21, 1988 | $17.21 | $17.08 |
| Jan 20, 1988 | $17.20 | $16.83 |
| Jan 19, 1988 | $17.30 | $17.10 |
| Jan 18, 1988 | $17.28 | $16.83 |
| Jan 15, 1988 | $16.92 | $16.65 |
| Jan 14, 1988 | $17.10 | $16.55 |
| Jan 13, 1988 | $16.56 | $16.38 |
| Jan 12, 1988 | $16.76 | $15.95 |
| Jan 11, 1988 | $16.63 | $16.65 |
| Jan 8, 1988 | $17.33 | $16.88 |
| Jan 7, 1988 | $17.30 | — |
| Jan 6, 1988 | $17.73 | $17.90 |
| Jan 5, 1988 | $17.89 | $17.08 |
| Jan 4, 1988 | $17.77 | $17.95 |
| Dec 31, 1987 | $16.74 | $17.60 |
| Dec 30, 1987 | $16.97 | $17.85 |
| Dec 29, 1987 | $16.95 | $17.38 |
| Dec 28, 1987 | $16.46 | $17.00 |
| Dec 24, 1987 | $16.54 | $17.10 |
| Dec 23, 1987 | $16.64 | $17.25 |
| Dec 22, 1987 | $16.60 | $16.70 |
| Dec 21, 1987 | $15.12 | $15.40 |
| Dec 18, 1987 | $15.57 | $15.60 |
| Dec 17, 1987 | $15.97 | $15.03 |
| Dec 16, 1987 | $15.97 | $15.93 |
| Dec 15, 1987 | $16.75 | $16.20 |
| Dec 14, 1987 | $17.47 | $16.80 |
| Dec 11, 1987 | $18.31 | $17.73 |
| Dec 10, 1987 | $18.51 | $17.55 |
| Dec 9, 1987 | $18.53 | $17.43 |
| Dec 8, 1987 | $18.06 | $17.58 |
| Dec 7, 1987 | $18.30 | $17.78 |
| Dec 4, 1987 | $18.68 | $18.00 |
| Dec 3, 1987 | $18.87 | $17.93 |
| Dec 2, 1987 | $18.59 | $17.70 |
| Dec 1, 1987 | $18.44 | $17.65 |
| Nov 30, 1987 | $18.52 | $17.70 |
| Nov 27, 1987 | $18.63 | $17.78 |
| Nov 26, 1987 | — | $17.73 |
| Nov 25, 1987 | $18.63 | $17.68 |
| Nov 24, 1987 | $18.73 | $17.83 |
| Nov 23, 1987 | $19.31 | $17.90 |
| Nov 20, 1987 | $18.87 | $17.60 |
| Nov 19, 1987 | $18.55 | $17.48 |
| Nov 18, 1987 | $18.62 | $17.18 |
| Nov 17, 1987 | $18.28 | $17.40 |
| Nov 16, 1987 | $18.69 | $17.68 |
| Nov 13, 1987 | $18.89 | $17.80 |
| Nov 12, 1987 | $18.93 | $17.85 |
| Nov 11, 1987 | $18.92 | $17.80 |
| Nov 10, 1987 | $18.98 | $17.75 |
| Nov 9, 1987 | $18.66 | $17.50 |
| Nov 6, 1987 | $18.73 | $17.95 |
| Nov 5, 1987 | $19.02 | $17.85 |
| Nov 4, 1987 | $19.09 | $17.93 |
| Nov 3, 1987 | $19.39 | $18.38 |
| Nov 2, 1987 | $19.64 | $18.63 |
| Oct 30, 1987 | $19.96 | $18.80 |
| Oct 29, 1987 | $19.93 | $18.75 |
| Oct 28, 1987 | $20.10 | $18.85 |
| Oct 27, 1987 | $20.15 | $18.80 |
| Oct 26, 1987 | $20.00 | $18.75 |
| Oct 23, 1987 | $20.18 | $18.98 |
| Oct 22, 1987 | $20.19 | $19.13 |
| Oct 21, 1987 | $19.93 | $18.93 |
| Oct 20, 1987 | $19.79 | $18.78 |
| Oct 19, 1987 | $19.79 | $19.10 |
| Oct 16, 1987 | $20.23 | $19.00 |
| Oct 15, 1987 | $19.77 | $18.68 |
| Oct 14, 1987 | $19.79 | $18.68 |
| Oct 13, 1987 | $19.66 | $18.55 |
| Oct 12, 1987 | $19.67 | $18.55 |
| Oct 9, 1987 | $19.67 | $18.60 |
| Oct 8, 1987 | $19.77 | $18.63 |
| Oct 7, 1987 | $19.68 | $18.58 |
| Oct 6, 1987 | $19.33 | $18.60 |
| Oct 5, 1987 | $19.81 | $18.78 |
| Oct 2, 1987 | $19.88 | $18.65 |
| Oct 1, 1987 | $19.62 | $18.50 |
| Sep 30, 1987 | $19.62 | $18.48 |
| Sep 29, 1987 | $19.58 | $18.50 |
| Sep 28, 1987 | $19.48 | $18.65 |
| Sep 25, 1987 | $19.47 | $18.60 |
| Sep 24, 1987 | $19.61 | $18.68 |
| Sep 23, 1987 | $19.66 | $18.48 |
| Sep 22, 1987 | $19.35 | $18.48 |
| Sep 21, 1987 | $19.77 | $18.28 |
| Sep 18, 1987 | $19.58 | $18.30 |
| Sep 17, 1987 | $19.58 | $18.43 |
| Sep 16, 1987 | $19.71 | $18.53 |
| Sep 15, 1987 | $19.66 | $18.53 |
| Sep 14, 1987 | $19.64 | $18.15 |
| Sep 11, 1987 | $19.42 | $18.18 |
| Sep 10, 1987 | $19.72 | $18.30 |
| Sep 9, 1987 | $19.43 | $17.90 |
| Sep 8, 1987 | $18.99 | $17.68 |
| Sep 7, 1987 | $19.34 | $17.60 |
| Sep 4, 1987 | $19.34 | $18.13 |
| Sep 3, 1987 | $19.48 | $18.18 |
| Sep 2, 1987 | $19.62 | $18.40 |
| Sep 1, 1987 | $19.61 | $18.43 |
| Aug 31, 1987 | $19.76 | $18.63 |
| Aug 28, 1987 | $19.44 | $18.20 |
| Aug 27, 1987 | $19.69 | $18.28 |
| Aug 26, 1987 | $19.49 | $18.10 |
| Aug 25, 1987 | $19.30 | $17.55 |
| Aug 24, 1987 | $19.18 | $17.48 |
| Aug 21, 1987 | $19.20 | $18.10 |
| Aug 20, 1987 | $19.47 | $18.30 |
| Aug 19, 1987 | $19.71 | $18.50 |
| Aug 18, 1987 | $19.84 | $18.75 |
| Aug 17, 1987 | $19.85 | $18.85 |
| Aug 14, 1987 | $20.53 | $19.25 |
| Aug 13, 1987 | $20.76 | $19.40 |
| Aug 12, 1987 | $20.96 | $19.50 |
| Aug 11, 1987 | $21.07 | $19.45 |
| Aug 10, 1987 | $20.70 | $19.43 |
| Aug 7, 1987 | $21.01 | $19.65 |
| Aug 6, 1987 | $21.17 | $19.75 |
| Aug 5, 1987 | $21.37 | $19.80 |
| Aug 4, 1987 | $21.82 | $20.65 |
| Aug 3, 1987 | $22.21 | $20.95 |
| Jul 31, 1987 | $21.43 | $20.03 |
| Jul 30, 1987 | $21.47 | $20.20 |
| Jul 29, 1987 | $21.49 | $19.98 |
| Jul 28, 1987 | $21.35 | $19.78 |
| Jul 27, 1987 | $20.50 | $19.30 |
| Jul 24, 1987 | $20.58 | $19.58 |
| Jul 23, 1987 | $21.23 | $20.15 |
| Jul 22, 1987 | $21.73 | $20.33 |
| Jul 21, 1987 | $21.75 | $20.35 |
| Jul 20, 1987 | $22.23 | $20.55 |
| Jul 17, 1987 | $22.44 | $20.63 |
| Jul 16, 1987 | $22.44 | $20.40 |
| Jul 15, 1987 | $22.23 | $20.28 |
| Jul 14, 1987 | $21.65 | $19.88 |
| Jul 13, 1987 | $21.38 | $19.83 |
| Jul 10, 1987 | $21.34 | $19.73 |
| Jul 9, 1987 | $21.32 | $19.68 |
| Jul 8, 1987 | $20.94 | $19.48 |
| Jul 7, 1987 | $20.76 | $19.50 |
| Jul 6, 1987 | $20.92 | $19.48 |
| Jul 3, 1987 | $20.61 | $19.33 |
| Jul 2, 1987 | $20.61 | $19.25 |
| Jul 1, 1987 | $20.47 | $18.98 |
| Jun 30, 1987 | $20.22 | $19.08 |
| Jun 29, 1987 | $20.38 | $19.15 |
| Jun 26, 1987 | $20.34 | $19.08 |
| Jun 25, 1987 | $20.15 | $18.70 |
| Jun 24, 1987 | $20.13 | $18.75 |
| Jun 23, 1987 | $19.95 | $18.90 |
| Jun 22, 1987 | $20.49 | $19.10 |
| Jun 19, 1987 | $20.65 | $19.05 |
| Jun 18, 1987 | $20.50 | $19.05 |
| Jun 17, 1987 | $20.41 | $19.03 |
| Jun 16, 1987 | $20.27 | $18.90 |
| Jun 15, 1987 | $20.07 | — |
| Jun 12, 1987 | $19.93 | $18.78 |
| Jun 11, 1987 | $19.85 | $18.68 |
| Jun 10, 1987 | $19.83 | $18.78 |
| Jun 9, 1987 | $19.84 | $18.78 |
| Jun 8, 1987 | $19.94 | $18.75 |
| Jun 5, 1987 | $19.79 | $18.65 |
| Jun 4, 1987 | $19.75 | $18.78 |
| Jun 3, 1987 | $19.87 | $18.75 |
| Jun 2, 1987 | $19.70 | $18.68 |
| Jun 1, 1987 | $19.55 | $18.65 |
| May 29, 1987 | $19.36 | $18.58 |
| May 28, 1987 | $19.28 | $18.60 |
| May 27, 1987 | $19.38 | $18.60 |
| May 26, 1987 | $19.35 | $18.63 |
| May 25, 1987 | — | $18.60 |
| May 22, 1987 | $19.68 | $18.55 |
| May 21, 1987 | $19.95 | $18.45 |
| May 20, 1987 | $19.75 | $18.63 |
| May 19, 1987 | $19.97 | — |
| May 18, 1987 | $19.91 | — |
| May 15, 1987 | $19.84 | — |
| May 14, 1987 | $19.56 | — |
| May 13, 1987 | $19.39 | — |
| May 12, 1987 | $19.37 | — |
| May 11, 1987 | $19.43 | — |
| May 8, 1987 | $19.28 | — |
| May 7, 1987 | $19.08 | — |
| May 6, 1987 | $19.22 | — |
| May 5, 1987 | $19.18 | — |
| May 4, 1987 | $18.93 | — |
| May 1, 1987 | $18.84 | — |
| Apr 30, 1987 | $18.76 | — |
| Apr 29, 1987 | $18.66 | — |
| Apr 28, 1987 | $18.73 | — |
| Apr 27, 1987 | $18.83 | — |
| Apr 24, 1987 | $19.01 | — |
| Apr 23, 1987 | $19.03 | — |
| Apr 22, 1987 | $19.03 | — |
| Apr 21, 1987 | $18.97 | — |
| Apr 20, 1987 | $18.66 | — |
| Apr 16, 1987 | $18.58 | — |
| Apr 15, 1987 | $18.46 | — |
| Apr 14, 1987 | $18.09 | — |
| Apr 13, 1987 | $18.07 | — |
| Apr 10, 1987 | $18.26 | — |
| Apr 9, 1987 | $18.64 | — |
| Apr 8, 1987 | $18.68 | — |
| Apr 7, 1987 | $18.69 | — |
| Apr 6, 1987 | $18.71 | — |
| Apr 3, 1987 | $18.68 | — |
| Apr 2, 1987 | $18.90 | — |
| Apr 1, 1987 | $18.78 | — |
| Mar 31, 1987 | $18.82 | — |
| Mar 30, 1987 | $18.67 | — |
| Mar 27, 1987 | $18.65 | — |
| Mar 26, 1987 | $18.63 | — |
| Mar 25, 1987 | $18.48 | — |
| Mar 23, 1987 | $18.60 | — |
| Mar 20, 1987 | $18.70 | — |
| Mar 19, 1987 | $18.61 | — |
| Mar 18, 1987 | $18.75 | — |
| Mar 17, 1987 | $18.94 | — |
| Mar 16, 1987 | $18.61 | — |
| Mar 13, 1987 | $18.39 | — |
| Mar 12, 1987 | $18.42 | — |
| Mar 11, 1987 | $18.33 | — |
| Mar 10, 1987 | $18.27 | — |
| Mar 9, 1987 | $18.13 | — |
| Mar 6, 1987 | $18.13 | — |
| Mar 5, 1987 | $18.00 | — |
| Mar 4, 1987 | $17.40 | — |
| Mar 3, 1987 | $17.40 | — |
| Mar 2, 1987 | $16.43 | — |
| Feb 27, 1987 | $16.45 | — |
| Feb 26, 1987 | $16.98 | — |
| Feb 25, 1987 | $16.43 | — |
| Feb 24, 1987 | $16.75 | — |
| Feb 23, 1987 | $17.15 | — |
| Feb 20, 1987 | $17.83 | — |
| Feb 19, 1987 | $17.48 | — |
| Feb 18, 1987 | $17.44 | — |
| Feb 17, 1987 | $17.78 | — |
| Feb 13, 1987 | $17.83 | — |
| Feb 12, 1987 | $18.05 | — |
| Feb 11, 1987 | $18.03 | — |
| Feb 10, 1987 | $18.43 | — |
| Feb 9, 1987 | $18.37 | — |
| Feb 6, 1987 | $18.44 | — |
| Feb 5, 1987 | $18.56 | — |
| Feb 4, 1987 | $18.26 | — |
| Feb 3, 1987 | $18.38 | — |
| Feb 2, 1987 | $18.59 | — |
| Jan 30, 1987 | $18.73 | — |
| Jan 29, 1987 | $18.68 | — |
| Jan 28, 1987 | $18.56 | — |
| Jan 27, 1987 | $18.48 | — |
| Jan 26, 1987 | $18.63 | — |
| Jan 23, 1987 | $18.59 | — |
| Jan 22, 1987 | $18.76 | — |
| Jan 21, 1987 | $18.60 | — |
| Jan 20, 1987 | $18.73 | — |
| Jan 19, 1987 | $18.70 | — |
| Jan 16, 1987 | $19.13 | — |
| Jan 15, 1987 | $19.09 | — |
| Jan 14, 1987 | $19.13 | — |
| Jan 13, 1987 | $18.86 | — |
| Jan 12, 1987 | $19.00 | — |
| Jan 9, 1987 | $18.78 | — |
| Jan 8, 1987 | $18.63 | — |
| Jan 7, 1987 | $18.28 | — |
| Jan 6, 1987 | $18.21 | — |
| Jan 5, 1987 | $17.98 | — |
| Jan 2, 1987 | $18.13 | — |
| Dec 31, 1986 | $17.93 | — |
| Dec 30, 1986 | $17.73 | — |
| Dec 29, 1986 | $17.65 | — |
| Dec 24, 1986 | $17.26 | — |
| Dec 23, 1986 | $16.93 | — |
| Dec 22, 1986 | $16.95 | — |
| Dec 19, 1986 | $16.55 | — |
| Dec 18, 1986 | $16.28 | — |
| Dec 17, 1986 | $15.83 | — |
| Dec 16, 1986 | $16.11 | — |
| Dec 15, 1986 | $16.38 | — |
| Dec 12, 1986 | $16.13 | — |
| Dec 11, 1986 | $15.49 | — |
| Dec 10, 1986 | $15.12 | — |
| Dec 9, 1986 | $14.93 | — |
| Dec 8, 1986 | $15.01 | — |
| Dec 5, 1986 | $15.14 | — |
| Dec 4, 1986 | $15.20 | — |
| Dec 3, 1986 | $15.13 | — |
| Dec 2, 1986 | $15.22 | — |
| Dec 1, 1986 | $15.29 | — |
| Nov 28, 1986 | $15.00 | — |
| Nov 26, 1986 | $15.00 | — |
| Nov 25, 1986 | $15.05 | — |
| Nov 24, 1986 | $14.98 | — |
| Nov 21, 1986 | $15.13 | — |
| Nov 20, 1986 | $15.10 | — |
| Nov 19, 1986 | $15.52 | — |
| Nov 18, 1986 | $15.65 | — |
| Nov 17, 1986 | $15.62 | — |
| Nov 14, 1986 | $15.68 | — |
| Nov 13, 1986 | $15.55 | — |
| Nov 12, 1986 | $15.33 | — |
| Nov 11, 1986 | $15.39 | — |
| Nov 10, 1986 | $15.30 | — |
| Nov 7, 1986 | $15.15 | — |
| Nov 6, 1986 | $15.08 | — |
| Nov 5, 1986 | $14.93 | — |
| Nov 4, 1986 | $15.05 | — |
| Nov 3, 1986 | $14.70 | — |
| Oct 31, 1986 | $15.25 | — |
| Oct 30, 1986 | $15.08 | — |
| Oct 29, 1986 | $13.73 | — |
| Oct 28, 1986 | $14.18 | — |
| Oct 27, 1986 | $14.40 | — |
| Oct 24, 1986 | $14.93 | — |
| Oct 23, 1986 | $14.88 | — |
| Oct 22, 1986 | $14.85 | — |
| Oct 21, 1986 | $15.22 | — |
| Oct 20, 1986 | $15.17 | — |
| Oct 17, 1986 | $14.85 | — |
| Oct 16, 1986 | $14.53 | — |
| Oct 15, 1986 | $14.83 | — |
| Oct 14, 1986 | $14.55 | — |
| Oct 10, 1986 | $14.98 | — |
| Oct 9, 1986 | $15.05 | — |
| Oct 8, 1986 | $15.35 | — |
| Oct 7, 1986 | $15.60 | — |
| Oct 6, 1986 | $14.83 | — |
| Oct 3, 1986 | $14.86 | — |
| Oct 2, 1986 | $15.38 | — |
| Oct 1, 1986 | $15.23 | — |
| Sep 30, 1986 | $14.70 | — |
| Sep 29, 1986 | $14.93 | — |
| Sep 26, 1986 | $14.43 | — |
| Sep 25, 1986 | $14.28 | — |
| Sep 24, 1986 | $14.55 | — |
| Sep 23, 1986 | $14.30 | — |
| Sep 22, 1986 | $13.94 | — |
| Sep 19, 1986 | $14.47 | — |
| Sep 18, 1986 | $14.55 | — |
| Sep 17, 1986 | $14.03 | — |
| Sep 16, 1986 | $13.80 | — |
| Sep 15, 1986 | $14.31 | — |
| Sep 12, 1986 | $15.06 | — |
| Sep 11, 1986 | $15.05 | — |
| Sep 10, 1986 | $14.90 | — |
| Sep 9, 1986 | $15.00 | — |
| Sep 8, 1986 | $15.63 | — |
| Sep 5, 1986 | $15.63 | — |
| Sep 4, 1986 | $16.18 | — |
| Sep 3, 1986 | $16.03 | — |
| Sep 2, 1986 | $16.43 | — |
| Aug 29, 1986 | $15.93 | — |
| Aug 28, 1986 | $15.83 | — |
| Aug 27, 1986 | $15.83 | — |
| Aug 26, 1986 | $15.78 | — |
| Aug 25, 1986 | $15.48 | — |
| Aug 22, 1986 | $15.48 | — |
| Aug 21, 1986 | $15.23 | — |
| Aug 20, 1986 | $15.23 | — |
| Aug 19, 1986 | $14.98 | — |
| Aug 18, 1986 | $15.58 | — |
| Aug 15, 1986 | $15.83 | — |
| Aug 14, 1986 | $15.43 | — |
| Aug 13, 1986 | $15.28 | — |
| Aug 12, 1986 | $15.50 | — |
| Aug 11, 1986 | $14.92 | — |
| Aug 8, 1986 | $14.83 | — |
| Aug 7, 1986 | $15.18 | — |
| Aug 6, 1986 | $14.80 | — |
| Aug 5, 1986 | $14.35 | — |
| Aug 4, 1986 | $14.00 | — |
| Aug 1, 1986 | $11.56 | — |
| Jul 31, 1986 | $11.23 | — |
| Jul 30, 1986 | $11.73 | — |
| Jul 29, 1986 | $11.63 | — |
| Jul 28, 1986 | $11.09 | — |
| Jul 25, 1986 | $10.83 | — |
| Jul 24, 1986 | $10.95 | — |
| Jul 23, 1986 | $10.83 | — |
| Jul 22, 1986 | $10.88 | — |
| Jul 21, 1986 | $13.07 | — |
| Jul 18, 1986 | $12.80 | — |
| Jul 17, 1986 | $12.30 | — |
| Jul 16, 1986 | $12.68 | — |
| Jul 15, 1986 | $11.85 | — |
| Jul 14, 1986 | $11.23 | — |
| Jul 11, 1986 | $11.13 | — |
| Jul 10, 1986 | $11.13 | — |
| Jul 9, 1986 | $11.00 | — |
| Jul 8, 1986 | $11.19 | — |
| Jul 7, 1986 | $11.18 | — |
| Jul 3, 1986 | $11.70 | — |
| Jul 2, 1986 | $12.04 | — |
| Jul 1, 1986 | $12.39 | — |
| Jun 30, 1986 | $12.80 | — |
| Jun 27, 1986 | $13.38 | — |
| Jun 26, 1986 | $13.14 | — |
| Jun 25, 1986 | $13.23 | — |
| Jun 24, 1986 | $13.98 | — |
| Jun 23, 1986 | $14.05 | — |
| Jun 20, 1986 | $14.44 | — |
| Jun 19, 1986 | $13.73 | — |
| Jun 18, 1986 | $13.62 | — |
| Jun 17, 1986 | $13.65 | — |
| Jun 16, 1986 | $13.65 | — |
| Jun 13, 1986 | $13.83 | — |
| Jun 12, 1986 | $13.69 | — |
| Jun 11, 1986 | $13.52 | — |
| Jun 10, 1986 | $12.38 | — |
| Jun 9, 1986 | $12.61 | — |
| Jun 6, 1986 | $12.73 | — |
| Jun 5, 1986 | $13.21 | — |
| Jun 4, 1986 | $13.15 | — |
| Jun 3, 1986 | $13.35 | — |
| Jun 2, 1986 | $13.80 | — |
| May 30, 1986 | $14.30 | — |
| May 29, 1986 | $14.50 | — |
| May 28, 1986 | $14.65 | — |
| May 27, 1986 | $15.10 | — |
| May 23, 1986 | $16.95 | — |
| May 22, 1986 | $16.04 | — |
| May 21, 1986 | $15.53 | — |
| May 20, 1986 | $16.18 | — |
| May 19, 1986 | $17.13 | — |
| May 16, 1986 | $16.08 | — |
| May 15, 1986 | $15.68 | — |
| May 14, 1986 | $15.53 | — |
| May 13, 1986 | $15.65 | — |
| May 12, 1986 | $15.75 | — |
| May 9, 1986 | $15.83 | — |
| May 8, 1986 | $15.70 | — |
| May 7, 1986 | $15.13 | — |
| May 6, 1986 | $14.43 | — |
| May 5, 1986 | $14.32 | — |
| May 2, 1986 | $14.65 | — |
| May 1, 1986 | $13.80 | — |
| Apr 30, 1986 | $13.38 | — |
| Apr 29, 1986 | $13.63 | — |
| Apr 28, 1986 | $13.34 | — |
| Apr 25, 1986 | $14.23 | — |
| Apr 24, 1986 | $13.65 | — |
| Apr 23, 1986 | $13.70 | — |
| Apr 22, 1986 | $13.13 | — |
| Apr 21, 1986 | $12.48 | — |
| Apr 18, 1986 | $11.88 | — |
| Apr 17, 1986 | $11.75 | — |
| Apr 16, 1986 | $11.50 | — |
| Apr 15, 1986 | $12.72 | — |
| Apr 14, 1986 | $12.94 | — |
| Apr 11, 1986 | $13.63 | — |
| Apr 10, 1986 | $13.45 | — |
| Apr 9, 1986 | $13.00 | — |
| Apr 8, 1986 | $12.83 | — |
| Apr 7, 1986 | $14.39 | — |
| Apr 4, 1986 | $12.75 | — |
| Apr 3, 1986 | $11.70 | — |
| Apr 2, 1986 | $11.35 | — |
| Apr 1, 1986 | $11.13 | — |
| Mar 31, 1986 | $10.25 | — |
| Mar 27, 1986 | $11.35 | — |
| Mar 26, 1986 | $12.03 | — |
| Mar 25, 1986 | $12.43 | — |
| Mar 24, 1986 | $12.20 | — |
| Mar 21, 1986 | $13.95 | — |
| Mar 20, 1986 | $12.75 | — |
| Mar 19, 1986 | $13.25 | — |
| Mar 18, 1986 | $14.03 | — |
| Mar 17, 1986 | $13.28 | — |
| Mar 14, 1986 | $12.55 | — |
| Mar 13, 1986 | $12.60 | — |
| Mar 12, 1986 | $14.05 | — |
| Mar 11, 1986 | $13.23 | — |
| Mar 10, 1986 | $12.94 | — |
| Mar 7, 1986 | $12.24 | — |
| Mar 6, 1986 | $13.13 | — |
| Mar 5, 1986 | $12.03 | — |
| Mar 4, 1986 | $11.98 | — |
| Mar 3, 1986 | $11.98 | — |
| Feb 28, 1986 | $13.23 | — |
| Feb 27, 1986 | $14.05 | — |
| Feb 26, 1986 | $14.62 | — |
| Feb 25, 1986 | $14.68 | — |
| Feb 24, 1986 | $14.68 | — |
| Feb 21, 1986 | $13.63 | — |
| Feb 20, 1986 | $14.13 | — |
| Feb 19, 1986 | $15.08 | — |
| Feb 18, 1986 | $14.70 | — |
| Feb 14, 1986 | $16.03 | — |
| Feb 13, 1986 | $16.43 | — |
| Feb 12, 1986 | $15.74 | — |
| Feb 11, 1986 | $16.28 | — |
| Feb 10, 1986 | $16.78 | — |
| Feb 7, 1986 | $17.70 | — |
| Feb 6, 1986 | $16.60 | — |
| Feb 5, 1986 | $16.28 | — |
| Feb 4, 1986 | $15.58 | — |
| Feb 3, 1986 | $17.42 | — |
| Jan 31, 1986 | $18.95 | — |
| Jan 30, 1986 | $19.58 | — |
| Jan 29, 1986 | $19.61 | — |
| Jan 28, 1986 | $19.45 | — |
| Jan 27, 1986 | $20.87 | — |
| Jan 24, 1986 | $19.45 | — |
| Jan 23, 1986 | $19.93 | — |
| Jan 22, 1986 | $20.25 | — |
| Jan 21, 1986 | $20.61 | — |
| Jan 20, 1986 | $21.33 | — |
| Jan 17, 1986 | $23.63 | — |
| Jan 16, 1986 | $23.98 | — |
| Jan 15, 1986 | $25.18 | — |
| Jan 14, 1986 | $24.97 | — |
| Jan 13, 1986 | $25.08 | — |
| Jan 10, 1986 | $25.65 | — |
| Jan 9, 1986 | $26.03 | — |
| Jan 8, 1986 | $25.87 | — |
| Jan 7, 1986 | $25.85 | — |
| Jan 6, 1986 | $26.53 | — |
| Jan 3, 1986 | $26.00 | — |
| Jan 2, 1986 | $25.56 | — |
In September 2026 dollars (CPI-U), the term began and ended at $78.58 and $53.64, and averaged $49.58. Of the 10 completed terms covered by EIA's daily WTI series, this term's average is the lowest in nominal terms and 3rd lowest adjusted for inflation.
Brent, whose EIA daily series begins on May 20, 1987, went from $18.63 on May 20, 1987 to $18.10 on Jan 19, 1989, down $0.53 (2.8%), and averaged $16.33. On the 425 dates with both prices published, Brent averaged −$1.06 against WTI.
Highs, lows and term figures
| Measure | WTI | Brent |
|---|---|---|
| First observation in the term | $25.56 Jan 2, 1986 | $18.63 May 20, 1987 |
| Last observation in the term | $19.28 Jan 19, 1989 | $18.10 Jan 19, 1989 |
| Change | −$6.28 | −$0.53 |
| Change, % | −24.6% | −2.8% |
| Term average | $16.77 | $16.33 |
| High | $26.53 Jan 6, 1986 | $20.95 Aug 3, 1987 |
| Low | $10.25 Mar 31, 1986 | $11.20 Oct 5, 1988 |
| Published daily prices | 775 | 428 |
| First observation, September 2026 $ | $78.58 | $55.50 |
| Last observation, September 2026 $ | $53.64 | $50.36 |
| Term average, September 2026 $ | $49.58 | $47.13 |
| Brent − WTI, average on matched dates | — | −$1.06 |
Monthly averages
| Month | WTI | Brent | WTI real |
|---|---|---|---|
| January 1986 | $22.93 | — | $70.49 |
| February 1986 | $15.46 | — | $47.66 |
| March 1986 | $12.61 | — | $39.05 |
| April 1986 | $12.84 | — | $39.84 |
| May 1986 | $15.38 | — | $47.59 |
| June 1986 | $13.43 | — | $41.33 |
| July 1986 | $11.59 | — | $35.66 |
| August 1986 | $15.10 | — | $46.38 |
| September 1986 | $14.87 | — | $45.47 |
| October 1986 | $14.90 | — | $45.52 |
| November 1986 | $15.22 | — | $46.45 |
| December 1986 | $16.11 | — | $49.12 |
| January 1987 | $18.65 | — | $56.51 |
| February 1987 | $17.75 | — | $53.59 |
| March 1987 | $18.30 | — | $55.00 |
| April 1987 | $18.68 | — | $55.85 |
| May 1987 | $19.44 | $18.58 | $57.91 |
| June 1987 | $20.07 | $18.86 | $59.58 |
| July 1987 | $21.34 | $19.86 | $63.18 |
| August 1987 | $20.31 | $18.98 | $59.82 |
| September 1987 | $19.53 | $18.31 | $57.22 |
| October 1987 | $19.86 | $18.76 | $58.04 |
| November 1987 | $18.85 | $17.78 | $55.04 |
| December 1987 | $17.28 | $17.05 | $50.45 |
| January 1988 | $17.13 | $16.75 | $49.89 |
| February 1988 | $16.80 | $15.73 | $48.80 |
| March 1988 | $16.20 | $14.73 | $46.85 |
| April 1988 | $17.86 | $16.60 | $51.39 |
| May 1988 | $17.42 | $16.31 | $49.95 |
| June 1988 | $16.53 | $15.54 | $47.20 |
| July 1988 | $15.50 | $14.91 | $44.07 |
| August 1988 | $15.52 | $14.89 | $43.94 |
| September 1988 | $14.54 | $13.18 | $40.89 |
| October 1988 | $13.77 | $12.41 | $38.60 |
| November 1988 | $14.14 | $13.02 | $39.60 |
| December 1988 | $16.38 | $15.31 | $45.80 |
| January 1989 † | $18.02 | $17.17 | $50.14 |
† The month includes an inauguration date; its average covers the whole month, including days in the adjacent term. Linked months have their own page.
Annual averages
| Year | WTI | Brent | WTI real |
|---|---|---|---|
| 1986 | $15.05 | — | $46.27 |
| 1987 | $19.20 | $18.53 from May 20 | $56.95 |
| 1988 | $15.97 | $14.91 | $45.49 |
| 1989 ‡ | $19.64 | $18.23 | $53.37 |
‡ Only part of the year falls in the term; the figure is the whole calendar year's average.
Compared with adjacent terms
| Term | First | Last | Change | Average | Average, real | Average vs this term |
|---|---|---|---|---|---|---|
| This term (1985–1989) | $25.56 | $19.28 | −24.6% | $16.77 | $49.58 | — |
| George H. W. Bush, 1989–1993 | $18.85 | $18.40 | −2.4% | $21.58 | $54.70 | +28.7% |
The previous term, Ronald Reagan, first term, 1981–1985, is measured with the U.S. crude oil first purchase price, a different series, so it is not compared here.
Sources
- What drives crude oil prices: Spot prices — U.S. Energy Information Administration
- The Constitution: Amendments 11-27 (Amendment XX, Section 1) — National Archives
- Past Inaugural Ceremonies — Joint Congressional Committee on Inaugural Ceremonies
- Table Definitions, Sources, and Explanatory Notes: Domestic Crude Oil First Purchase Prices — U.S. Energy Information Administration
Source and methodology
| Provider | Series | Units | Coverage | Latest observation |
|---|---|---|---|---|
| U.S. Energy Information Administration | RWTC — WTI spot price FOB (daily, monthly, annual) | $/bbl | Jan 2, 1986 – Jan 19, 1989 | Jan 19, 1989 |
| U.S. Energy Information Administration | RBRTE — Brent spot price FOB (daily, monthly, annual) | $/bbl | May 20, 1987 – Jan 19, 1989 | Jan 19, 1989 |
| U.S. Energy Information Administration | F000000__3 — U.S. crude oil first purchase price (monthly, annual) | $/bbl | February 1981 – December 1984 | — |
| U.S. Bureau of Labor Statistics | CUUR0000SA0 — CPI-U, all items, NSA | index, 1982–84=100 | monthly and annual average | September 2026 |
Term boundaries are inauguration dates. Under the 20th Amendment a term begins at noon on January 20; Gerald Ford was sworn in on August 9, 1974. When January 20 fell on a Sunday (1985 and 2013) the public ceremony was held on January 21, but the term began on January 20. A term runs up to, not including, the next term's first day.
Daily WTI and Brent: the first observation counted is the first EIA spot price published on or after inauguration day (spot prices are assessed at the market close, after the noon oath), and the last is the final price published before the next inauguration day. The term average is the mean of the daily prices published within the term. Monthly and annual tables show EIA's published averages for whole calendar months and years; months and years that straddle an inauguration are marked.
U.S. crude oil first purchase price (monthly): only calendar months lying entirely within the term are counted, so the months containing inauguration dates are left out. The first and last observations are the first and last such months, and the term average is the mean of their values. This series is never combined with WTI.
A term is shown when its series covers at least half of it. Inflation adjustment: real = nominal × CPI-U(September 2026) ÷ CPI-U(month of the observation); the real term average is the mean of the adjusted observations. Observations in a month with no published CPI-U (including the latest month, until BLS publishes it) are left out of real figures, and the months left out are listed.
Last updated: Oct 21, 2026, 5:27 PM CDT. Raw values are shown in source units; any conversion is labeled. See methodology and data sources.
Download:Ronald Reagan term data (CSV)