Oil Prices in December 2009: WTI & Brent Daily Prices and Monthly Average
WTI average
$74.47
EIA monthly average
vs November 2009
−4.5%
$77.99
vs December 2008
+81.1%
$41.12
Brent average
$74.46
avg daily Brent − WTI −$0.01
WTI averaged $74.47 per barrel in December 2009, down $3.52 (4.5%) from November 2009. The average was 81% above the $41.12 of December 2008.
Daily spot prices, December 2009
Chart data table (22 rows)
| Period | WTI | Brent |
|---|---|---|
| Dec 31, 2009 | $79.39 | $77.91 |
| Dec 30, 2009 | $79.35 | $77.62 |
| Dec 29, 2009 | $78.87 | $76.65 |
| Dec 28, 2009 | $78.67 | $76.59 |
| Dec 24, 2009 | $76.83 | $75.15 |
| Dec 23, 2009 | $76.03 | $73.87 |
| Dec 22, 2009 | $73.48 | $71.64 |
| Dec 21, 2009 | $72.71 | $72.74 |
| Dec 18, 2009 | $73.30 | $71.87 |
| Dec 17, 2009 | $72.58 | $71.28 |
| Dec 16, 2009 | $72.64 | $73.34 |
| Dec 15, 2009 | $70.62 | $71.33 |
| Dec 14, 2009 | $69.48 | $71.19 |
| Dec 11, 2009 | $69.86 | $70.07 |
| Dec 10, 2009 | $70.54 | $70.91 |
| Dec 9, 2009 | $70.67 | $73.63 |
| Dec 8, 2009 | $72.59 | $74.93 |
| Dec 7, 2009 | $73.89 | $76.18 |
| Dec 4, 2009 | $75.41 | $77.74 |
| Dec 3, 2009 | $76.42 | $77.76 |
| Dec 2, 2009 | $76.62 | $76.96 |
| Dec 1, 2009 | $78.39 | $78.68 |
The month's range ran from $69.48 on Dec 14, 2009 to $79.39 on Dec 31, 2009; the last price was $79.39 on Dec 31, 2009.
Brent averaged $74.46, within a dollar of WTI on average across the 22 dates when both were published.
Adjusted with CPI-U, the December 2009 average equals $116.19 in September 2026 dollars.
December 2009 summary
| Measure | WTI | Brent |
|---|---|---|
| Monthly average | $74.47 | $74.46 |
| Change vs November 2009 | −$3.52 | −$2.20 |
| Change vs December 2008 | +$33.35 | +$34.51 |
| Highest daily price | $79.39 Dec 31, 2009 | $78.68 Dec 1, 2009 |
| Lowest daily price | $69.48 Dec 14, 2009 | $70.07 Dec 11, 2009 |
| Published daily observations | 22 | 22 |
| Average in September 2026 dollars (CPI-U) | $116.19 | $116.18 |
Monthly averages are EIA's published figures. Real figures use CPI-U for December 2009.
Source and methodology
| Provider | Series | Units | Coverage | Latest observation |
|---|---|---|---|---|
| U.S. Energy Information Administration | RWTC — WTI spot price FOB (daily, monthly) | $/bbl | Dec 1, 2009 – Dec 31, 2009 | Dec 31, 2009 |
| U.S. Energy Information Administration | RBRTE — Brent spot price FOB (daily, monthly) | $/bbl | Dec 1, 2009 – Dec 31, 2009 | Dec 31, 2009 |
| 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:2009 daily prices (CSV)