Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Ụzọ: O were Lone Star ihe karịrị otu afọ na ọkara iji ruo mita 9,583, nke bụ́ ihe fọrọ nke nta ka ọ bụrụ kilomita isii n'ime mmiri. N'oge a na-egwu ala, olulu ahụ zutere nnukwu nrụgide <unk> ihe fọrọ nke nta ka ọ bụrụ 25,000 psi (172,369 kPa). A chọtaghị ihe ndị e ji emepụta mmanụ ala tupu a malite igwu ala n'ebe e nwere sọlfọ gbazere agbaze, bụ́ nke mere ka ihe e ji egwu ala gbazee. E mechiri olulu mmiri ahụ ma mechie ya na Granite Wash site na 11,000 ruo 13,200 ụkwụ dị ka onye na-emepụta gas.Dabere na ndekọ ndekọ nke ọma sitere na Oklahoma Corporation Commission, olulu Bertha Rogers kwụsịrị mmepụta gas na July 1997 ma kemgbe ahụ e mechiri ya ma gbahapụ ya.  Ajụjụ: Olee nrụgide Lone Star nwetara mgbe ọ na-egwu ala?
25,000 psi