It was getting late that September afternoon in 2012. Whedbee, a 50-year-old derrickhand, was helping another worker remove a pipe fitting on top of the well when it suddenly blew.

Oil and sludge pressurized at more than 700 pounds per square inch tore into Whedbee’s body, ripping his left arm off just below the elbow. Coworkers jerry-rigged a tourniquet from a sweatshirt and a ratchet strap to stanch his bleeding and got his wife on the phone.

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