houston/washington top executive company behind embattle dakota access pipeline donate 100,000 republican presidential candidate donald trump since june accord campaign finance disclosure record donations kelcy warren chairman chief executive officer pipeline operator energy transfer partner support candidate see many likely promote u.s. oil gas industry opponent democrat hillary clinton warren donate 300 trump campaign primaries 2,700 trump general election phase campaign maximum contribution allow single individual election also give 100,000 trump victory fund joint fundraise committee include trump campaign republican national committee republican party arkansas connecticut republican party donations first report british newspaper guardian make u.s. government halt construction segment energy transfer partner 1,100-mile 1,770-km dakota access pipeline early september follow protest native american environmental group project would move oil highly productive bakken shale formation midwest gulf coast spark violent clash security officer near construction site native american tribe members protesters opponents say project damage burial sit consider sacred stand rock sioux tribe pollute area drink water warren also give 66,800 republication national committee since trump secure nomination nov. election guardian report trump yet take position dakota access pipeline support development oil gas relate infrastructure include pipelines ask trump position dakota access pipeline policy debate week u.s. representative kevin cramer north dakota one candidate main energy advisers decline answer say want get ahead trump add sure trump aware it elect trump first 100 days ask transcanada renew permit application keystone xl pipeline accord campaign website u.s. president barack obama reject propose pipeline canada last november trump hold energy transfer partner phillips 66 joint owner dakota access pipeline mutual fund accord financial disclosure record u.s. oil gas industry workers contribute slightly clinton employees give 114,141 democratic candidate 99,302 trump since july accord reuters review federal campaign finance disclosures top executive behind dakota access donate 100,000 trump