TransAtlantic Petroleum Ltd. is vertically integrated international oil and gas company, engages in the acquisition, exploration, development and production of crude oil and natural gas. The company holds interests in developed and undeveloped oil and gas properties in Turkey, Bulgaria and Romania. It owns drilling rigs and oilfield service equipment to develop their properties in Turkey and Morocco. The company's drilling services business provides oilfield services and drilling services to third parties in Turkey and Iraq. TransAtlantic Petroleum was founded on October 1, 1985 and is headquartered in Addison, TX.