The total number of rigs drilling for natural gas in the U.S. fell this week as producers continued to curb drilling activity amid slumping energy prices.

The number of oil and gas rigs fell to 899, down one from the previous week, according to rig data from oil-field services company Baker Hughes Inc. (BHI). The number of gas rigs was 703, a drop of eight rigs from last week, while the number of oil rigs climbed to 187, an increase of seven rigs. The number of miscellaneous rigs was unchanged at nine.

The number of gas rigs in use peaked at 1,606 in September.

Natural gas prices have plunged about 72% from summer highs amid robust production from U.S. onshore natural gas fields and slumping demand. Large industrial consumers have scaled back gas use to cut costs during the recession. In response to falling gas prices, producers such as Chesapeake Energy Corp. (CHK) and Devon Energy Corp. (DVN) have slashed their spending plans and rig counts to reduce the flow of new gas supplies into the market.

Analysts anticipate that the sharp decline in natural gas drilling activity will eventually bring supply back in line with demand and help bolster gas prices.

Gas for June delivery on the New York Mercantile Exchange was recently down 7.9 cents, or 2%, at $3.878 a million British thermal units.

-By Jason Womack, Dow Jones Newswires; 713-547-9201; jason.womack@dowjones.com