new york continental resources chief executive harold hamm top president-elect donald trump list serve energy secretary accord u.s. representative kevin cramer north dakota trump energy adviser confirm also consideration job view harold hamm right first refusal cramer tell reuters telephone interview view likely ask patriot american likely say yes hamm 70 become one america wealthy men u.s. oil gas drill boom past decade tap controversial hydraulic fracture drill technology access vast deposit north dakota shale field continental spokeswoman kristin thomas say never conversation trump hamm position decline speculate hamm would respond ask take job people close hamm mix possibility think harold would great energy secretary job president call think would say mike cantrell former vice president government affairs continental remain close hamm another prominent u.s. oil gas executive know hamm ask name however say doubt hamm would will leave continental may interest strong say get job aside hamm cramer trump short list energy secretary also include venture capitalist robert grady serve associate director natural resources energy science president george h. w. bush office management budget accord cramer two source knowledge situation grady respond request comment hamm nominate oklahoman would first u.s. energy secretary draw directly industry since cabinet position create 1977 move would jolt environmental advocate bolster trump pro-drilling energy platform trump republican take office jan. 20 succeed democratic president barack obama also work fill top administration job come weeks hamm address republican convention july call expand drill say much environmental regulation threaten limit u.s. oil production increase country dependence middle east oil producers past head u.s. department energy charge advance u.s. energy security technology include nuclear weapons production labs typically boast political academic background dan eberhart texas oil investor republican party financier work hamm conversations trump campaign say know hamm seriously consider know want it former capitol hill staffer know hamm cramer say think trump would wise favor north dakota congressman self-described climate change skeptic history support oil gas coal sectors hamm cramer would fantastic choices think cramer bring balance stability say ask name first time hamm contention job republican party presidential nominee 2012 mitt romney vet hamm energy secretary ultimately decide two men differ position renewable energy source like wind hamm make headline 2015 settle protract divorce case agree pay ex-wife 975 million report one big divorce settlement history oil mogul hamm top trump list u.s. energy secretary source