- ONEOK Energy Marketing & Trading, with natural gas sales of more than 1, 200 Bcf per year, has the negotiating strength to cut through complex pricing issues and trade energy under very attractive pricing scenarios. OEMT's natural gas storage capacity is 68 Bcf that provides peak-day deliverables of over 23 Bcf/day and 1.3 Bcf per day injection capability. OEMT offers energy marketing and ...www.oneokenergy.com