CNBC’s Brian Sullivan reports on how the collapse in oil prices has weighed on oil producers and the market. Affectsbreaking newsbusiness newscablecable newsCNBCcollapsefinance newsfinance stockgasHERE39SHistoricMiningmoneymoney tipsnews channelnews stationoilpricesProducersSquawk Alleystock marketus newsVideosVlogworld newsYouTube