us independent oil & natural gas exploration and production watch our video about shale gas development to view this video please enable javascript and consider upgrading to a web browser that supports html5 video where we operate about chief chief oil & gas is a privately held independent oil & gas exploration and production company that has been drilling and producing clean burning natural gas since 1994 . chief is proud of its environmental record of responsibly protecting water and natural resources in our areas of natural gas development across the united states . where we operate chief oil & gas is engaged in the exploration development and production of natural gas reserves in the marcellus shale region of northeastern pennsylvania . contact us chief oil & gas is headquartered in dallas texas . the appalachian regional office is located in montoursville pennsylvania . field offices are in wyalusing pennsylvania . about chief oil & gas is a privately held independent oil & gas exploration and production company that has been drilling and producing clean burning natural gas since 1994 . chief is proud of its environmental record of responsibly protecting water and natural resources in our areas of natural gas development across the united states . contact us corporate headquarters 8111 westchester dr suite 900 dallas tx 75225 214.265.9590 regional office 1720 sycamore rd montoursville pa 17754 570.651.9825 wyalusing office 5 gravel pit rd wyalusing pa 18853 570.746.7750 2014 chief oil & gas . all rights reserved .