Operations  :  Brazil  :  Reconcavo

Fazenda Rio Branco Field

• Participation - BrazAlta Norte S.A. (Canacol) 47.5%
                            W. Washington (Operator) 52.5%
• Area - 1,236 acres (gross); 587 acres (net)

Fazenda Santo Estevao Field

• Participation – BrazAlta Norte S.A. (Canacol) 47.5%
                            W. Washington (Operator) 52.5%
• Area – 2,471 acres (gross); 1,174 acres (net)

Santana Field

• Participation – BrazAlta Norte S.A. (Canacol) 47.5%
                            W. Washington (Operator) 52.5%
• Area – 6,178 acres (gross); 2,934 acres (net)

 Sauipe Field

• Participation – BrazAlta Norte S.A. (Canacol) 47.5%
                            W. Washington (Operator) 52.5%
• Area – 741 acres (gross); 352 acres (net)

 Tico-Tico Field

• Participation – BrazAlta Norte S.A. (Canacol) 47.5%
                            W. Washington (Operator) 52.5%
• Area – 2,983 acres (gross); 1,417 acres (net)

Total 2P Reserves for above Fields: 1,121,291 Bbls

 Rec-T-169 E&P Contract

• Participation – BrazAlta Norte S.A. (Canacol) 20%
                            W. Washington (Operator) 52.5%
                            PetroVista 50%
• Area  – 5,281 acres (gross); 1,056 acres (net)
• Mean EUR Resource Potential Unrisked: 3.2 mmbo

 Rec-T-170 E&P Contract

• Participation – BrazAlta Norte S.A. (Canacol) 37.5%
                            W. Washington (Operator) 37.5%
                            PetroVista 25%
• Area – 6,914 acres (gross); 2,593 acres (net)
• Mean EUR Resource Potential Unrisked: 6.1 mmbo