UPDATE 1-U.S. boosts monthly rate of oil rig additions to most since 2012 - Baker Hughes

(Recasts, adds increasing rate of growth) Feb 10 (Reuters) - U.S. energy companies accelerated the rate of growth in oil rigs added over the past four weeks by the most since 2012 as drillers take advantage of a rise in crude prices since OPEC agreed to cut supplies in late November. Drillers added eight oil rigs in the week to Feb. 10, bringing the total count up to 591, the most since October 2015, energy services firm Baker Hughes Inc said on Friday. Duri