On July 31, the EIA released monthly data on U.S. oil production, which revealed a decline in U.S. output of 30,000 bpd in May, compared to a month earlier. The dip is a surprise, given the widespread assumption that U.S. shale production was continuing to grow at a blistering pace. To be sure, a big reason for the decline in overall output was the 75,000-bpd decline in production from offshore Gulf of Mexico. But Texas production only rose by 20,000 bpd, a disappointing figure that likely came in far below what most analysts had expected. Moreover, the monthly total of 10.442 million barrels per day (mb/d) for May is sharply lower than what EIA itself thought at the time. Here are the weekly estimates for U.S. oil production that the EIA put out back then: April 6: 10.525 mb/d April 13: 10.540 mb/d April 20: 10.586 mb/d April 27: […]