UPDATE 1-U.S. Sept oil output hits 11.5 mln bpd, 4th straight month of record highs

highs@ (Updates with gas production details,)

NEW YORK, Nov 30 (Reuters) - U.S. crude oil output hit a new all-time high of 11.5 million barrels per day in September, the fourth consecutive month of record highs, according to the government on Friday, the latest indicator of a wave of onshore U.S. production that has weighed on global markets.

U.S. crude production rose 129,000 bpd in September to 11.475 million bpd, the U.S. Energy Information Administration said in a monthly report.

Oil production, which was up nearly 21 percent year-on-year, broke its 1970 record of 10.04 million bpd in February this year, and has set monthly record highs for four straight months since June.

The increase from August reflected rising onshore output that outstripped production cuts in the U.S. Gulf of Mexico during hurricane season.

Production rose 106,000 bpd in Texas, 64,000 bpd in North Dakota and 24,000 bpd in New Mexico. Production in the offshore Gulf fell by 147,000 bpd in the month, as storms including Hurricane Gordon prompted producers to shut in production .

Meanwhile, gross natural gas production in the lower 48 U.S. states rose to an all-time high of 95.9 billion cubic feet per day (bcfd) in September, up from the prior record of 94.8 bcfd in August, according to EIA's 914 production report.

In Texas, the nation's largest gas producer, production increased to a record high 25.1 bcfd in September, up 0.7 percent from August. That compares with output of 22.1 bcfd in September 2017.

In Pennsylvania, the second biggest gas producing state, production rose to a record high 17.7 bcfd in September, up 2.7 percent from August. That compares with output of 14.8 bcfd in September 2017. (Reporting By Jessica Resnick-Ault and Scott DiSavino Editing by Marguerita Choy and Marguerita Choy)