Oil Prices in August 2011: WTI & Brent Daily Prices and Monthly Average
WTI dropped in August 2011: the monthly average fell to $86.33, down $10.97 (11.3%) from July 2011. A year earlier, in August 2010, it averaged $76.60, so the price was higher by $9.73 (12.7%) year over year.
Daily spot prices, August 2011
Chart data table (23 rows)
| Period | WTI | Brent |
|---|---|---|
| Aug 31, 2011 | $88.81 | $116.48 |
| Aug 30, 2011 | $88.90 | $115.59 |
| Aug 29, 2011 | $87.27 | — |
| Aug 26, 2011 | $85.37 | $112.29 |
| Aug 25, 2011 | $85.15 | $111.91 |
| Aug 24, 2011 | $84.99 | $111.91 |
| Aug 23, 2011 | $85.35 | $110.35 |
| Aug 22, 2011 | $84.42 | $108.83 |
| Aug 19, 2011 | $82.33 | $109.37 |
| Aug 18, 2011 | $82.38 | $108.36 |
| Aug 17, 2011 | $87.58 | $111.37 |
| Aug 16, 2011 | $86.65 | $109.69 |
| Aug 15, 2011 | $87.88 | $108.89 |
| Aug 12, 2011 | $85.19 | $108.17 |
| Aug 11, 2011 | $85.48 | $107.82 |
| Aug 10, 2011 | $83.05 | $103.84 |
| Aug 9, 2011 | $79.32 | $103.63 |
| Aug 8, 2011 | $81.27 | $103.06 |
| Aug 5, 2011 | $86.89 | $106.92 |
| Aug 4, 2011 | $86.75 | $110.22 |
| Aug 3, 2011 | $91.87 | $113.74 |
| Aug 2, 2011 | $93.78 | $116.02 |
| Aug 1, 2011 | $94.98 | $116.37 |
The month's range ran from $79.32 on Aug 9, 2011 to $94.98 on Aug 1, 2011; the last price was $88.81 on Aug 31, 2011. The largest one-day move was −$5.62 on Aug 8, 2011 (−6.5%).
Brent averaged $110.22; its premium over WTI on matched dates averaged $23.93, with the daily Brent − WTI difference ranging from +$20.03 to +$27.67.
Adjusted with CPI-U, the August 2011 average equals $128.40 in September 2026 dollars.
August 2011 summary
| Measure | WTI | Brent |
|---|---|---|
| Monthly average | $86.33 | $110.22 |
| Change vs July 2011 | −$10.97 | −$6.75 |
| Change vs August 2010 | +$9.73 | +$33.18 |
| Highest daily price | $94.98 Aug 1, 2011 | $116.48 Aug 31, 2011 |
| Lowest daily price | $79.32 Aug 9, 2011 | $103.06 Aug 8, 2011 |
| Published daily observations | 23 | 22 |
| Average in September 2026 dollars (CPI-U) | $128.40 | $163.93 |
Monthly averages are EIA's published figures. Real figures use CPI-U for August 2011.
Source and methodology
| Provider | Series | Units | Coverage | Latest observation |
|---|---|---|---|---|
| U.S. Energy Information Administration | RWTC — WTI spot price FOB (daily, monthly) | $/bbl | Aug 1, 2011 – Aug 31, 2011 | Aug 31, 2011 |
| U.S. Energy Information Administration | RBRTE — Brent spot price FOB (daily, monthly) | $/bbl | Aug 1, 2011 – Aug 31, 2011 | Aug 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)