NEW YORK, Sept. 5, 2012 /PRNewswire/ -- OTC Markets Group Inc. (OTCQX: OTCM), operator of Open, Transparent and Connected financial marketplaces, today announced that San Leon Energy Plc (OTCQX: SLGYY; LSE: SLE), one of Europe's leading shale gas companies by acreage, has chosen to have its American Depositary Receipts (ADRs) traded on the highest OTC marketplace, OTCQX ®. (Logo: http://photos.prnewswire.com/prnh/20110118/MM31963LOGO) San Leon Energy began trading today on the OTC market's prestigious tier, OTCQX International. Investors can find current financial disclosures and Real-Time Level 2 quotes for the Company on www.otcmarkets.com. "The OTCQX marketplace offers investor-focused companies a key combination of quality control, transparency, and broader visibility to U.S. investors," said R. Cromwell Coulson, President and Chief Executive Officer of OTC Markets Group. "OTCQX companies demonstrate their commitment to providing timely and transparent information to investors and maintaining the highest quality standards. We are pleased to welcome San Leon to OTCQX." SecuritiesLawUSA, PC will serve as San Leon Energy's Principal American Liaison ("PAL") on OTCQX, responsible for providing guidance on OTCQX requirements and U.S. securities laws. About San Leon Energy PlcSan Leon Energy Plc (OTCQX: SLGYY; LSE: SLE) trades in the United States on OTCQX under the symbol "SLGYY", where each ADR represents 50 ordinary shares. San Leon Energy is a specialist oil and gas company with an extensive portfolio of assets across Europe and North Africa and is one of Europe's leading shale gas companies by acreage. San Leon's assets are located in Poland, Morocco, Albania, Ireland, Spain, Germany, France and Italy. The Company's portfolio across these geographies is made up of both shale and conventional oil and gas assets. About OTC Markets Group Inc.OTC Markets Group Inc. (OTCQX: OTCM) operates Open, Transparent and Connected financial marketplaces for investors to easily trade almost 10,000 equity and debt securities through the broker of their choice. Our OTC Link ® ATS directly links a diverse network of broker-dealers that provide liquidity and execution services for a wide spectrum of securities. We organize these securities into tiered marketplaces to inform investors of opportunities and risks - OTCQX ® - The Intelligent Marketplace for the Best OTC Companies; OTCQB ® - The Venture Marketplace; and OTC Pink ® - The Open Marketplace. Our data-driven platform enables efficient trading through any broker at the best possible price and empowers a broad range of companies to improve the quality and availability of information for their investors. To learn more about how we create smarter financial marketplaces, visit www.otcmarkets.com. OTC Link ATS is operated by OTC Link LLC, member FINRA/SIPC and SEC registered ATS.