US energy firms this week added oil and natural gas rigs for a second week in a row for the first time since February, energy services firm Baker Hughes said in its closely followed report on Friday. The oil and gas rig count, an early indicator of future output, rose by two to 587 in the week to April 25. Despite this week’s rig increase, Baker Hughes said the total count was still down 26, or 4% below this time last year. Baker Hughes said oil rigs rose by two to 483 this week, while gas rigs increased by one to 99. In April, drillers cut the number of rigs operating by five, putting the total count down for a second month in a row with oil rigs down by one and gas rigs off by four.