US crude oil oil rig flanges gulf coast production rose 2 percent to a record 10.674 million bpd in June, the US Energy Information Administration says.

NEW YORK, Aug 31 (Reuters) - U.S. crude oil oil rig flanges gulf coast production rose 231,000 barrels per day, or 2 percent, to a record 10.674 million bpd in June, the U.S. Energy Information Administration said in a monthly report on Friday.

The agency also revised its estimate for May up by 1,000 bpd to 10.4 million bpd.

U.S. output has been closely watched by crude oil markets, which have contended with concerns about oversupply as oil oil rig flanges gulf coast production ramps up and trade tensions between the United States and China weigh on global demand forecasts.

The gains reflected growing oil rig flanges gulf coast production on land in Texas, where output climbed 165,000 bpd, or 3.9 percent to 4.4 million bpd. Output also rose in the Gulf of Mexico, climbing 10.3 percent, or 154,000 bpd to 1.7 million bpd.

U.S. natural gas oil rig flanges gulf coast production in the lower 48 states rose to an all-time high of 90.8 billion cubic feet per day (bcfd) in June, up from the prior record of 89.9 bcfd in May, according to EIA's 914 oil rig flanges gulf coast production report.

Output in Texas, the nation's largest gas producer, increased 1.5 percent in June to 23.9 bcfd.

In Pennsylvania, the second biggest gas producing state, oil rig flanges gulf coast production rose 2.2 percent to 16.5 bcfd in June. The United States has been the world's biggest producer of gas since 2009, ahead of Russia.

(Reporting By Jessica Resnick-Ault Editing by Marguerita Choy and Richard Chang)