Petro Vista has exploration, development and production rights or others to acquire such rights (subject to regulatory approval) to over 727,031 gross leasehold acres (197,697 net) in Brazil and Colombia.

BRAZIL

The Company has acquired certain participating interests in a total of two onshore petroleum exploration concessions in the producing Recôncavo Basin. Additionally the Company has an option to acquire a working interest in the producing Tartaruga block in the Sergipe Alagoas Basin subject to the Company meeting its farmout obligations and receiving all necessary regulatory and partner approvals including the approval of the ANP to the assignment to the Company of a working interest. This block is located on Brazil's east coast situated adjacent to the large Miranga Oil Field (Petrobras) having over 814 MMBOE in place and the Carmopolis Oil Field with over 528 MMBOE.

COLOMBIA

Petro Vista has one producing and two exploration agreements in hydrocarbon-rich properties in the Llanos and Rio Magdalena Basins in Colombia. These prolific basins are characterized as having large blocks (ie: Sinu Norte SSJN-5 Block at 570,452 gross acres), multiple high-productivity reservoir targets and large-structure prospects. A series of seismic and near-term drilling programs will be carried out in these areas in 2011.