PLS was started in 1987 to adapt the real estate industry's highly effective MLS (multiple listing service) for the oil and gas industry. The firm takes its name from the simple concept of a "Petroleum Listing Service" but PLS has since expanded to provide buyers and sellers the information, marketing and advisory services they need to better manage their portfolios and facilitate profitable transactions.To that end, PLS publishes various listing, news and research reports; offers various data and information tools; brokers and direct markets properties, prospects, overrides and midstream assets for sellers seeking additional services; and provides advisory and consulting services on an as needed or project basis.PLS has experienced consistent growth since its conception acquiring Production Exchange and Dwight's Petroleum Registry in the early 1990s and DivestPro Energy Partners in 2004. Today, over 6,000 energy professionals subscribe to PLS' research and data bases while its marketing arm (divestment services) is one of the largest handlers of oil and gas asset sales in the mid to under market. Overall, PLS has handled north of 850 projects worth in aggregate of $2.5 billion while its advisory arm continues to support clients in sourcing new opportunities and capital markets.