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Porto Energy Corp. (Porto) is a development-stage international natural resources company. Porto is engaged in the exploration, development and production of crude oil and natural gas. The Company, through its wholly owned subsidiary, Mohave Oil and Gas Corporation (MOGC), holds working interests in five concessions located in the Lusitanian Basin of Portugal, which include the Aljubarrota-3, Torres Vedras-3, Sao Pedro de Muel-2, Cabo Mondego-2 and Rio Maior-2 covering a total of 1,444,152 net acres. Porto's Lusitanian Basin is located on and offshore west-central Portugal and covers an area of approximately 30,000 square kilometers. As of February 1, 2011, the Company held 97.5% working interest in Torres Vedras-3 Concession for reservoirs below a depth of 400 metres and 87.5% for reservoirs above 400 metres. On January 30, 2010, it was formed through the amalgamation (the Amalgamation) of Porto and Mohave Exploration & Production Inc. (MEPI).

Valaris Limited, together with its subsidiaries, provides offshore contract drilling services Gulf of Mexico, South America, North Sea, the Middle East, Africa, and the Asia Pacific. The company operates through four segments: Floaters, Jackups, ARO, and Other. It owns an offshore drilling rig fleet, which include drillships, dynamically positioned semisubmersible rigs, moored semisubmersible rig, and jackup rigs. It serves international, government-owned, and independent oil and gas. Valaris Limited was founded in 1975 and is based in Hamilton, Bermuda.

Yorbeau Resources Inc. engages in the acquisition, exploration, and development of mineral properties in Canada. It explores for gold, silver, copper, zinc, and other base metals. The company holds 100% interests in the Rouyn property that consists of 1 mining concession and 73 claims having a total area of 2,684.88 hectares (ha) located in the south of Rouyn-Noranda, Québec; the Scott Lake property comprises three non-contiguous claim blocks consisting of 123 complete or partial claim cells covering an area of approximately 6,089 ha located in the townships of Lévy, Scott, and Obalski in northwestern Québec; and the Estrades-Caribou property, which consists of claim blocks totaling 118 claims located in the Estrées Township in Québec. It also owns 100% interests in the Beschefer property that comprises 128 claims located in the Beschefer Township of northwestern Quebec; the Selbaie West property consists of 105 claims located in the Carheil and Brouillan townships in Québec; the Landrienne property, which consists of 59 claims located in the Landrienne Township in Québec; the Lemoine property comprising 102 claims located in the Lemoine, Rinfret, and Dollier townships in Québec; and the Castagnier property. In addition, the company holds interests in the Joutel-Explo Zinc project consisting of 118 claims; the Gemini-Turgeon projects comprises 189 claims; and the Allard property, which includes 43 claims located in the Abitibi region of Québec. Yorbeau Resources Inc. was incorporated in 1984 and is headquartered in Montreal, Canada.