Hurricane Dolly (2008) O'Connor and San Luis Pass, and for the Gulf coast from the San Fernando River southward to La Pesca, Tamaulipas. That evening, at 10 p.m. CDT (0300 UTC July 22), the hurricane watches and tropical storm watches in both countries were upgraded to hurricane warnings and tropical storm warnings, respectively. At the same time, the Mexican government issued a hurricane watch between the San Fernando River and La Pesca. In the Gulf of Mexico, Royal Dutch Shell evacuated 125 personnel from its oil rigs on July 20, and evacuated another 60 on July 21. Diamond Offshore Drilling removed non-essential employees
Hurricane Dolly (2008) from some of its rigs, and the Rowan Companies also evacuated one of their eight oil rigs in the Gulf. Also on July 21, Chevron announced that it was evacuating some of its workers from its oil rigs in the Gulf, but did not disclose how many were removed. On July 22, BP announced the evacuation of non-essential personnel from two of its rigs, and on July 23, Petróleos Mexicanos evacuated 66 people from one of its rigs. In spite of this, oil production was not expected to be affected by Dolly. In Texas, Governor Rick Perry activated 1,200 members