Viking International Limited & Viking Geophysical Services, Ltd. (collectively “Viking” or the “Company”)

Viking is a leading integrated oilfield service provider focused in Turkey, the Kurdistan region of northern Iraq, Poland, Armenia, Romania and Bulgaria (collectively the “Operating Region”). The Company is a premier provider of land drilling, completion and geophysical services to leading IOCs and NOCs in the Operating Region. Viking is headquartered in Tekirdag, Turkey and has approximately 720 employees. Viking was a wholly owned subsidiary of TransAtlantic Petroleum Ltd., an international energy company engaged in the acquisition, development, exploration and production of oil and natural gas, primarily in Turkey, Bulgaria and Romania.

Dalea Partners, LP (“Dalea”)

Dalea is a U.S. based private equity firm with offices in Dallas, Texas. Its portfolio of investments is comprised of traditional and non-traditional investments across numerous industry sectors and economies.

Abraaj Investment Management Limited (“Abraaj”)

Abraaj is a leading private equity manager investing in global growth markets. The group has set the standard for private equity investing in growth markets, having returned close to US$3.4 billion to investors from 59 full and partial exits, providing industry leading returns across a range of companies that have emerged as today’s regional champions and tomorrow’s global challengers. The Abraaj Capital group currently manages approximately US$7.5 billion, employs over 300 people and has 32 offices spread across 6 regional hubs in Dubai, Istanbul, London, Mumbai, Nairobi and Singapore with a seventh to be established in Latin America. Funds managed by the group have holdings in over 150 partner companies that collectively employ in excess of 100,000 people and create sustainable value in sectors including manufacturing, education, retail, aviation, oil and gas, financial payments infrastructure, healthcare and agribusiness.

PPHB, LP (“PPHB”)

PPHB is an independent investment banking firm providing financial advisory services exclusively to clients in the oilfield equipment and service industry.