HOUSTON (AP) — The number of rigs exploring for oil and natural gas in the U.S. increased by five this week to 1,008.

At this time a year ago there were 847 active rigs.

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Houston oilfield services company Baker Hughes reported Friday that 815 rigs drilled for oil this week and 192 for gas. One was listed as miscellaneous.

(Photo by David McNew/Getty Images)

Among major oil- and gas-producing states, Texas added three rigs, Oklahoma gained two while Colorado, Louisiana and Ohio each added one.

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Kansas, New Mexico and West Virginia each lost one rig.

Alaska, Arkansas, California, North Dakota, Pennsylvania, Utah and Wyoming were unchanged.

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The U.S. rig count peaked at 4,530 in 1981. It bottomed out in May of 2016 at 404.