Seplat Petroleum is an independent Nigerian exploration and production company and the operator of the NPDC/Seplat joint venture. The company is listed on the Nigerian and London stock exchanges. Gross operated production as at 2014 is over 70,000 barrels of oil per day, with average gross gas production of 118.1 million standard cubic feet per day. The company has quadrupled its output since it began production in 2010. Seplat is investing in expanding gas production processing and delivery infrastructure.