Oil Prices in August 2018: WTI & Brent Daily Prices and Monthly Average
WTI average
$68.06
EIA monthly average
vs July 2018
−4.1%
$70.98
vs August 2017
+41.7%
$48.04
Brent average
$72.53
avg daily Brent − WTI +$4.47
WTI averaged $68.06 per barrel in August 2018, down $2.92 (4.1%) from July 2018. The average was 42% above the $48.04 of August 2017.
Daily spot prices, August 2018
Chart data table (23 rows)
| Period | WTI | Brent |
|---|---|---|
| Aug 31, 2018 | $69.84 | $76.94 |
| Aug 30, 2018 | $70.25 | $77.05 |
| Aug 29, 2018 | $69.68 | $76.07 |
| Aug 28, 2018 | $68.54 | $75.91 |
| Aug 27, 2018 | $69.97 | $74.41 |
| Aug 24, 2018 | $69.71 | $74.41 |
| Aug 23, 2018 | $69.13 | $73.73 |
| Aug 22, 2018 | $67.85 | $72.96 |
| Aug 21, 2018 | $67.32 | $71.65 |
| Aug 20, 2018 | $66.50 | $71.11 |
| Aug 17, 2018 | $65.93 | $70.14 |
| Aug 16, 2018 | $65.44 | $69.21 |
| Aug 15, 2018 | $65.07 | $68.38 |
| Aug 14, 2018 | $67.04 | $70.77 |
| Aug 13, 2018 | $67.25 | $70.62 |
| Aug 10, 2018 | $67.61 | $71.00 |
| Aug 9, 2018 | $66.81 | $70.55 |
| Aug 8, 2018 | $66.92 | $70.71 |
| Aug 7, 2018 | $69.17 | $72.31 |
| Aug 6, 2018 | $69.01 | $72.51 |
| Aug 3, 2018 | $68.49 | $72.48 |
| Aug 2, 2018 | $68.95 | $72.95 |
| Aug 1, 2018 | $68.80 | $72.28 |
Prices dipped to $65.07 on Aug 15, 2018, then climbed to $70.25 on Aug 30, 2018 and ended at $69.84.
Brent averaged $72.53; its premium over WTI on matched dates averaged $4.47, with the daily Brent − WTI difference ranging from +$3.14 to +$7.37.
Adjusted with CPI-U, the August 2018 average equals $90.95 in September 2026 dollars.
August 2018 summary
| Measure | WTI | Brent |
|---|---|---|
| Monthly average | $68.06 | $72.53 |
| Change vs July 2018 | −$2.92 | −$1.72 |
| Change vs August 2017 | +$20.02 | +$20.83 |
| Highest daily price | $70.25 Aug 30, 2018 | $77.05 Aug 30, 2018 |
| Lowest daily price | $65.07 Aug 15, 2018 | $68.38 Aug 15, 2018 |
| Published daily observations | 23 | 23 |
| Average in September 2026 dollars (CPI-U) | $90.95 | $96.92 |
Monthly averages are EIA's published figures. Real figures use CPI-U for August 2018.
Source and methodology
| Provider | Series | Units | Coverage | Latest observation |
|---|---|---|---|---|
| U.S. Energy Information Administration | RWTC — WTI spot price FOB (daily, monthly) | $/bbl | Aug 1, 2018 – Aug 31, 2018 | Aug 31, 2018 |
| U.S. Energy Information Administration | RBRTE — Brent spot price FOB (daily, monthly) | $/bbl | Aug 1, 2018 – Aug 31, 2018 | Aug 31, 2018 |
| 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:2018 daily prices (CSV)