Wo àyọkà tó wà nísàlẹ̀ yìí, kó o sì dáhùn ìbéèrè tó wà lẹ́yìn náà ní èdè kan náà tí àyọkà náà wà:  Passage: The Lone Star Producing Company 1<unk>27 Bertha Rogers hole or well was an oil-exploratory hole drilled in Washita County, Oklahoma in 1974, and was the world's deepest hole until it was surpassed in 1979 by the Kola Superdeep Borehole, dug by the USSR. Ìlú yìí ni wọ́n ti ń wa epo rọ̀bì.  Ìbéèrè: Ibo ni Bertha Rogers ti gba ìdánilẹ́kọ̀ọ́?
Ìpínlẹ̀ Washita, Oklahoma