Oilfield services company Baker Hughes Inc. says the number of rigs exploring for oil and natural gas in the U.S. this week declined by 10 to 757.

The company said Friday that 564 rigs were seeking oil and 193 natural gas. A year ago, with oil prices almost double the prices now, 1,929 rigs were active.

Among major oil- and gas-producing states, Louisiana and Oklahoma each lost four rigs, Colorado and Wyoming each declined by three, West Virginia lost two and Ohio declined by one.

Texas gained four rigs; Pennsylvania, two; and North Dakota, one.

Alaska, Arkansas, California, Kansas, New Mexico and Utah were unchanged.