Oil Prices in October 2011: WTI & Brent Daily Prices and Monthly Average
WTI averaged $86.32 per barrel in October 2011, little changed from September 2011 ($85.52). A year earlier, in October 2010, it averaged $81.89, so the price was higher by $4.43 (5.4%) year over year.
Daily spot prices, October 2011
Chart data table (21 rows)
| Period | WTI | Brent |
|---|---|---|
| Oct 31, 2011 | $93.19 | $108.43 |
| Oct 28, 2011 | $93.32 | $110.01 |
| Oct 27, 2011 | $93.96 | $112.45 |
| Oct 26, 2011 | $90.20 | $110.43 |
| Oct 25, 2011 | $92.98 | $112.11 |
| Oct 24, 2011 | $91.12 | $111.67 |
| Oct 21, 2011 | $87.19 | $111.60 |
| Oct 20, 2011 | $86.07 | $109.00 |
| Oct 19, 2011 | $86.11 | $111.76 |
| Oct 18, 2011 | $88.34 | $112.08 |
| Oct 17, 2011 | $86.38 | $112.92 |
| Oct 14, 2011 | $86.80 | $114.33 |
| Oct 13, 2011 | $83.96 | $112.45 |
| Oct 12, 2011 | $85.30 | $112.44 |
| Oct 11, 2011 | $85.54 | $109.22 |
| Oct 10, 2011 | $85.14 | $109.49 |
| Oct 7, 2011 | $82.70 | $106.56 |
| Oct 6, 2011 | $82.32 | $104.38 |
| Oct 5, 2011 | $79.41 | $103.77 |
| Oct 4, 2011 | $75.40 | $101.84 |
| Oct 3, 2011 | $77.34 | $103.61 |
Prices rose over the month, from $77.34 on Oct 3, 2011 to $93.19 on Oct 31, 2011. The largest one-day move was +$4.01 on Oct 5, 2011 (+5.3%).
Brent averaged $109.55; its premium over WTI on matched dates averaged $23.23, with the daily Brent − WTI difference ranging from +$15.24 to +$28.49.
It was the second-lowest monthly average of 2011. Adjusted with CPI-U, the October 2011 average equals $128.45 in September 2026 dollars.
October 2011 summary
| Measure | WTI | Brent |
|---|---|---|
| Monthly average | $86.32 | $109.55 |
| Change vs September 2011 | +$0.80 | −$3.28 |
| Change vs October 2010 | +$4.43 | +$26.88 |
| Highest daily price | $93.96 Oct 27, 2011 | $114.33 Oct 14, 2011 |
| Lowest daily price | $75.40 Oct 4, 2011 | $101.84 Oct 4, 2011 |
| Published daily observations | 21 | 21 |
| Average in September 2026 dollars (CPI-U) | $128.45 | $163.02 |
Monthly averages are EIA's published figures. Real figures use CPI-U for October 2011.
Source and methodology
| Provider | Series | Units | Coverage | Latest observation |
|---|---|---|---|---|
| U.S. Energy Information Administration | RWTC — WTI spot price FOB (daily, monthly) | $/bbl | Oct 3, 2011 – Oct 31, 2011 | Oct 31, 2011 |
| U.S. Energy Information Administration | RBRTE — Brent spot price FOB (daily, monthly) | $/bbl | Oct 3, 2011 – Oct 31, 2011 | Oct 31, 2011 |
| U.S. Bureau of Labor Statistics | CUUR0000SA0 — CPI-U, all items, NSA | index, 1982–84=100 | monthly | September 2026 |
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:2011 daily prices (CSV)