US energy companies added oil rigs for a second week in a row. April 13 (Reuters) – U.S. energy companies added oil rigs for a second week in a row, following through on plans to spend more on drilling this year with crude prices at three-year highs, energy services firm Baker Hughes said on Friday. Drillers added seven oil rigs in the week to April 13, bringing the total to 815, the highest since March 2015, the General Electric Co unit said in its closely followed report. More than half the total oil rigs are in the Permian basin in west Texas and eastern New Mexico. Active units there increased by one this week to 445, the most since January 2015. The U.S. government expects oil output in the Permian to rise to a record high near 3.2 million barrels per day in April, about 30 percent of total […]