<p>A fish swims past oil gushing from a ruptured Gulf of Mexico well in this frame grab of a live video feed of the Gulf oil spill released on May 20 2010 BP Plc said on Thursday it was siphoning off more of the oil gushing from its ruptured well but the energy giant faced over up allegations over its struggling response to the catastrophic month old spill REUTERS BP Handout UNITED STATES Tags DISASTER ENERGY ENVIRONMENT BUSINESS FOR EDITORIAL USE ONLY NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS< p>