US energy firms accelerate offshore evacuations as twin storms loom

US oil producers on Saturday evacuated more workers from offshore Gulf of Mexico platforms as two tropical storms took aim at the major oil-producing region.

Storms Marco and Laura are poised to enter the Gulf early next week, with each forecast to make landfalls on the Gulf coast by mid-week. However, neither storm is expected to become a major hurricane and the forecast storm tracks cover a wide area. Storm Marco on Saturday is expected to become a category one hurricane with winds of at least 74 miles per hour (119 km) but faces wind-shear conditions that will limit development. Storm Laura is on a track to travel over Hispaniola and Cuba, and is likely to remain a tropical storm, said Matt Rogers, a meteorologist at Commodity Weather Group.

“We don't see the intensity and strengthening risk” to either storm, said Rogers, whose company advises energy and agricultural firms. The prospect of either becoming a damaging, category three storm is just 10%, he said. Unlike Hurricane Harvey, which struck the region three years ago, neither is expected to linger inland, reducing risk of coastal flooding.

Still, helicopters on Saturday were criss-crossing the Gulf of Mexico, ferrying workers off platforms in precautionary measures, said Tony Hermans, base manager at Bristow Galliano heliport in southern Louisiana. Scheduled evacuations will be completed by Sunday, he said.

US Gulf of Mexico offshore wells account for 17% of total US crude oil production and 5% of total US natural gas production. The region along the Texas to Mississippi coasts also accounts for 45% of total US petroleum refining capacity.

BP, Royal Dutch Shell, BHP and Chevron each had begun removing personnel from offshore facilities. Occidental Petroleum and Louisiana Offshore Oil Port, a major oil export and import terminal, reported they had begun implementing weather procedures.