The US Bureau of Land Management’s field office in Pinedale, Wyo., released the first of four groundwater monitoring reports for the Pinedale Anticline. The report aims to address hydrogeologic data gaps.

Total UK Ltd. reported a well intervention operation stopped the G4 well natural gas leak on the Elgin complex in the UK North Sea within 12 hr of when workers started pumping heavy mud into the well.

An independent review of the US Environmental Protection Agency’s draft report on water near Pavillion, Wyo., concluded scientific analysis fails to support EPA’s suggestion that hydraulic fracturing possibly contributed to water contamination, the Independent Petroleum Association of America reported.

Repsol SA continues drilling Cuba’s first offshore oil well as some US government agencies, oil and gas organizations, and environmental groups press to ease restrictions that would keep US companies from responding if the well blows out and sets off a spill, experts at a Center for International Policy seminar said.

The US Environmental Protection Agency will need at least until Aug. 15, 2013, to finalize new national ambient air quality standards on particle matter, it told a federal court on May 4.

US Interior Sec. Ken Salazar hailed the collaboration that made an agreement possible as he signed the record of decision authorizing Anadarko Petroleum Corp.’s Greater Natural Buttes natural gas project in eastern Utah.

A New Orleans judge has scheduled an early-2013 trial date to hear liability claims for the April 2010 blowout of BP PLC’s deepwater Macondo well and the subsequent explosion and fire on Transocean Ltd.’s Deepwater Horizon semisubmersible.