The number of oil and natural gas wells in the United States dipped by three to 421 wells in the most recent count conducted by the Texas-based wells' service company Baker Hughes.



It said there are 330 oil wells, 90 natural gas wells and one miscellaneous well.



That total is down by 438 wells from a year ago.



Ohio has 12 wells and Pennsylvania  has 13 wells, both unchanged from the previous week. West Virginia has 11 wells, down one from last week.



A year ago, Pennsylvania had 47 wells, West Virginia had 20 wells and Ohio had 17 wells.