williston north dakota two energy advisers donald trump want call members organization petroleum export countries drive world oil price deliver major energy policy speech week advisers say ask trump 2016 presidential campaign contribute ideas speech tell reuters also suggest mention cut regulations streamline federal tax code make u.s. energy company competitive advisers u.s. congressman kevin cramer north dakota another ask identify say urge trump criticize opec cartel contribute crash world oil price produce full throttle factor help push many u.s. oil company bankruptcy look global play field see partner opec iran russia play fair global marketplace cramer say advice give trump trump presumptive republican presidential nominee shy target opec top producer saudi arabia past say unite state consider halt oil purchase kingdom provide troop fight islamic state militants control swaths syria iraq trump speech thursday williston basin petroleum conference north dakota heart u.s. drill country hard hit oil price slump may reveal first time approach energy sector elect spokeswoman trump campaign decline request comment unclear whether trump would use ideas provide advisers trump far mostly mute detail energy policy dismiss climate change hoax promise renegotiate u.n. global climate accord vow revival u.s. coal industry hobble low price rule limit pollution emissions environmental advocate hillary clinton frontrunner democratic nomination criticize stance underplay economic social risk climate change cramer cosponsor bipartisan bill investigate opec influence oil market say trump examine saudi venezuelan ownership stake u.s. refineries import foreign oil instead use domestic supply elect president one-third u.s. refine capacity own opec countries fit trump america first policy cramer say cramer suggestions second adviser reuters interview send trump senior policy advisers include john mashburn expect help draft trump speech accord source familiar campaign mashburn could reach comment organizer thursday conference north dakota petroleum council president ron ness say 7,700 people expect attend many probably hop assurances trump help oil industry competitive manage cyclical nature market struggle daily onslaught punitive regulations say cramer suggest trump ease regulations like clean power plan aim curb emissions scientists believe contribute global warm also want trump consider scope waterways protect clean water act trump advisers push target opec regulations big energy speech