WellFinder is a monthly subscription app ($7. 99/month - 3 day Free Trial - Cancel at anytime). WellFinder's database contains over 1. 7 million active oil and gas Wells in AK, AR, CA, CO, KS, LA, MT, ND, NE, NM, NY, OH, OK, PA, SD, TX, UT, WY. Search/sort by Well Name or API Number. Filter and display Wells by County, Field Name, Operator, Status or Well Type.