The number of rigs exploring for oil and natural gas in the U.S. increased by three this week to 981. Louisiana lost one rig, but its count of 59 was up eight from a year ago. 

The U.S. tally is up from 756 rigs active this time a year ago. The count bottomed out in May  2016 at 404.

Houston oilfield services company Baker Hughes reported Friday that 800 rigs drilled for oil this week and 181 for gas.

Among major oil- and gas-producing states, Oklahoma increased by three rigs, Alaska and Pennsylvania, two each; and New Mexico and Texas, one each.

Colorado decreased by three rigs and North Dakota, two.

Arkansas, California, Ohio, Utah, West Virginia and Wyoming were unchanged.