Editing Carter County, Oklahoma (section)

===Geology===
The Healdton Field, encompassing Healdton and located in the western portion of Carter County, produces from the [[Pennsylvanian (geology)|Pennsylvanian]] Healdton sands of the Hoxbar Group and the [[Ordovician]] massive carbonate Arbuckle Group.<ref>Latham, J.W., Petroleum Geology of Healdton Field, Carter County, Oklahoma, in AAPG Memoir 14, Geology of Giant Petroleum Fields, Halbouty, M.T., editor, Tulsa: American Association of Petroleum Geologists, p. 255</ref>  The field is located on the "Healdton uplift", a northwest–southeast trending [[anticline]], which formed with the [[Wichita Orogeny]], and is 8 miles long and up to 3 miles wide.<ref>Latham, J.W., Petroleum Geology of Healdton Field, Carter County, Oklahoma, in AAPG Memoir 14, Geology of Giant Petroleum Fields, Halbouty, M.T., editor, Tulsa: American Association of Petroleum Geologists, pp. 256-257</ref>  This was followed by deposition of the Healdton [[sandstone]]s and [[shale]]s on pre-Pennsylvanian eroded rocks and subsequent folding during the Arbuckle Orogeny.<ref>Latham, J.W., Petroleum Geology of Healdton Field, Carter County, Oklahoma, in AAPG Memoir 14, Geology of Giant Petroleum Fields, Halbouty, M.T., editor, Tulsa: American Association of Petroleum Geologists, pp. 255-256</ref>  A prospector named Palmer drilled a shallow well, 425 feet, near an oil seep in the 1890s but Federal Law prohibited oil development on "Indian lands" until the early 1900s.<ref name="Latham, J.W. p. 256">Latham, J.W., Petroleum Geology of Healdton Field, Carter County, Oklahoma, in AAPG Memoir 14, Geology of Giant Petroleum Fields, Halbouty, M.T., editor, Tulsa: American Association of Petroleum Geologists, p. 256</ref>  Therefore, the discovery of the field is credited to the drilling of No. 1 Wirt Franklin in 1913.<ref name="Latham, J.W. p. 256"/>