Weekly US oil production is back to 9.3 million barrels per day and is nearing the 9.6 million barrel peak in mid-2015.

OPEC raised its outlook for U.S. production growth by 285,000 barrels a day to 820,000 a day in 2017. The number of drilling rigs operating in the country has more than doubled since May, data from Baker Hughes Inc. shows, as shale explorers emerge from a two-year rout buoyed by the initial price gains after OPEC announced its plan.

OPEC members are still sticking with their pledge to reduce output, the report showed. Production from all 13 members slipped by 18,200 barrels a day to 31.73 million last month, with Saudi Arabia continuing to pump below its official target.

As crude oil production in the Permian Basin of western Texas and eastern New Mexico has increased, pipeline infrastructure has also increased to deliver this crude oil to demand centers on the U.S. Gulf Coast.

One indicator of a potential shortfall in available takeaway capacity in the Permian is a negative spread between the price of West Texas Intermediate (WTI) crude oil at Midland, Texas, and the price of WTI at Cushing, Oklahoma.

Going forward, the Midland versus Cushing discount, which recently widened to more than $1 per barrel (b), is unlikely to be either as large or as persistent as it was following the rapid increase in Permian production from 2010 to 2014. At points in both late 2012 and mid-2014, WTI-Midland was priced at least $15/b lower than WTI-Cushing. Pipeline capacity expansions and other market changes are now underway to deliver more Permian crude oil to demand centers.