Oil Prices in May 2015: WTI & Brent Daily Prices and Monthly Average
WTI averaged $59.27 per barrel in May 2015, up $4.82 (8.9%) from April 2015. The average was 42% below the $102.18 of May 2014.
Daily spot prices, May 2015
Chart data table (20 rows)
| Period | WTI | Brent |
|---|---|---|
| May 29, 2015 | $60.25 | $63.16 |
| May 28, 2015 | $57.69 | $60.12 |
| May 27, 2015 | $57.51 | $61.35 |
| May 26, 2015 | $57.29 | $61.65 |
| May 22, 2015 | $58.88 | $64.70 |
| May 21, 2015 | $60.18 | $64.70 |
| May 20, 2015 | $58.96 | $63.52 |
| May 19, 2015 | $57.30 | $63.48 |
| May 18, 2015 | $59.44 | $65.15 |
| May 15, 2015 | $59.73 | $64.69 |
| May 14, 2015 | $59.89 | $65.58 |
| May 13, 2015 | $60.50 | $66.33 |
| May 12, 2015 | $60.72 | $65.09 |
| May 11, 2015 | $59.23 | $62.82 |
| May 8, 2015 | $59.41 | $63.82 |
| May 7, 2015 | $58.99 | $64.93 |
| May 6, 2015 | $60.93 | $66.22 |
| May 5, 2015 | $60.38 | $65.44 |
| May 4, 2015 | $58.92 | $64.62 |
| May 1, 2015 | $59.10 | $64.13 |
Prices peaked at $60.93 on May 6, 2015, then fell to $57.29 on May 26, 2015 and ended at $60.25. The largest one-day move was +$2.56 on May 29, 2015 (+4.4%).
Brent averaged $64.08; its premium over WTI on matched dates averaged $4.81, with the daily Brent − WTI difference ranging from +$2.43 to +$6.18.
It was the second-highest monthly average of 2015. Adjusted with CPI-U, the May 2015 average equals $83.98 in September 2026 dollars.
May 2015 summary
| Measure | WTI | Brent |
|---|---|---|
| Monthly average | $59.27 | $64.08 |
| Change vs April 2015 | +$4.82 | +$4.56 |
| Change vs May 2014 | −$42.91 | −$45.46 |
| Highest daily price | $60.93 May 6, 2015 | $66.33 May 13, 2015 |
| Lowest daily price | $57.29 May 26, 2015 | $60.12 May 28, 2015 |
| Published daily observations | 20 | 20 |
| Average in September 2026 dollars (CPI-U) | $83.98 | $90.79 |
Monthly averages are EIA's published figures. Real figures use CPI-U for May 2015.
Part of the price episode: 2014–16 price decline
Source and methodology
| Provider | Series | Units | Coverage | Latest observation |
|---|---|---|---|---|
| U.S. Energy Information Administration | RWTC — WTI spot price FOB (daily, monthly) | $/bbl | May 1, 2015 – May 29, 2015 | May 29, 2015 |
| U.S. Energy Information Administration | RBRTE — Brent spot price FOB (daily, monthly) | $/bbl | May 1, 2015 – May 29, 2015 | May 29, 2015 |
| 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:2015 daily prices (CSV)