Oil Prices in October 2005: WTI & Brent Daily Prices and Monthly Average
WTI averaged $62.26 per barrel in October 2005, down $3.33 (5.1%) from September 2005. A year earlier, in October 2004, it averaged $53.28, so the price was higher by $8.98 (16.9%) year over year.
Daily spot prices, October 2005
Chart data table (21 rows)
| Period | WTI | Brent |
|---|---|---|
| Oct 31, 2005 | $59.80 | $58.47 |
| Oct 28, 2005 | $61.30 | $59.47 |
| Oct 27, 2005 | $61.03 | $58.10 |
| Oct 26, 2005 | $60.85 | $58.56 |
| Oct 25, 2005 | $62.83 | $58.72 |
| Oct 24, 2005 | $60.63 | $57.64 |
| Oct 21, 2005 | $61.05 | $56.94 |
| Oct 20, 2005 | $61.04 | $57.04 |
| Oct 19, 2005 | $62.11 | $58.13 |
| Oct 18, 2005 | $62.94 | $58.85 |
| Oct 17, 2005 | $64.26 | $59.81 |
| Oct 14, 2005 | $62.61 | $58.45 |
| Oct 13, 2005 | $63.05 | $59.48 |
| Oct 12, 2005 | $64.13 | $59.91 |
| Oct 11, 2005 | $63.84 | $58.10 |
| Oct 10, 2005 | $60.71 | $57.01 |
| Oct 7, 2005 | $61.81 | $57.29 |
| Oct 6, 2005 | $61.81 | $57.20 |
| Oct 5, 2005 | $62.56 | $59.33 |
| Oct 4, 2005 | $63.74 | $59.17 |
| Oct 3, 2005 | $65.36 | $61.64 |
Prices fell over the month, from $65.36 on Oct 3, 2005 to $59.80 on Oct 31, 2005, with declines on 13 of 20 trading days. The largest one-day move was +$3.13 on Oct 11, 2005 (+5.2%).
Brent traded below WTI on average this month: $58.54 for the month, $3.72 under WTI across 21 matched dates.
Adjusted with CPI-U, the October 2005 average equals $105.31 in September 2026 dollars.
October 2005 summary
| Measure | WTI | Brent |
|---|---|---|
| Monthly average | $62.26 | $58.54 |
| Change vs September 2005 | −$3.33 | −$4.37 |
| Change vs October 2004 | +$8.98 | +$8.76 |
| Highest daily price | $65.36 Oct 3, 2005 | $61.64 Oct 3, 2005 |
| Lowest daily price | $59.80 Oct 31, 2005 | $56.94 Oct 21, 2005 |
| Published daily observations | 21 | 21 |
| Average in September 2026 dollars (CPI-U) | $105.31 | $99.02 |
Monthly averages are EIA's published figures. Real figures use CPI-U for October 2005.
Source and methodology
| Provider | Series | Units | Coverage | Latest observation |
|---|---|---|---|---|
| U.S. Energy Information Administration | RWTC — WTI spot price FOB (daily, monthly) | $/bbl | Oct 3, 2005 – Oct 31, 2005 | Oct 31, 2005 |
| U.S. Energy Information Administration | RBRTE — Brent spot price FOB (daily, monthly) | $/bbl | Oct 3, 2005 – Oct 31, 2005 | Oct 31, 2005 |
| 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:2005 daily prices (CSV)