Common use of Interest of the Parties Clause in Contracts

Interest of the Parties. The costs, risk and liabilities associated with the exploration and development of the Contract Area and the Newfield Lease (including all wells, platforms, pipelines, facilities and equipment associated dire▇▇▇▇ with the specified operations herein) and all oil and gas produced from wells drilled pursuant to the terms hereof, shall be borne and owned, ▇▇▇▇ect to the terms and conditions set out herein, and unless otherwise agreed, by the Parties in accordance with the following percentage working interests ("Working Interests"): Party Working Interests ----- ----------------- Newfield 50.00000% Ridgewood 50.00000%* *Subject to an obligation to pay a disproportionate share of Initial Test Well costs to Casing Point, as further described in Article 3. Participation Agreement-Eugene Island Block 346/347 dated March 15, 2007 Newfield ▇▇▇▇▇▇ation Company & Ridgewood Energy Corporation - 2 -

Interest of the Parties. The costs, risk and liabilities associated with the exploration and development of the Contract Area and the Newfield Lease (including all wells, platforms, pipelines, facilities and equipment associated diredir▇▇▇▇▇ with the specified operations herein) and all oil and gas produced from wells drilled pursuant to the terms hereof, shall be borne and owned, ▇▇▇▇ect ject to the terms and conditions set out herein, and unless otherwise agreed, by the Parties in accordance with the following percentage working interests ("Working Interests"): Party Working Interests ----- ----------------- Newfield 50.00000% Ridgewood 50.00000%* *Subject to an obligation to pay a disproportionate share of Initial Test Well costs to Casing Point, as further described in Article 3. Participation Agreement-Eugene Island Block 346/347 dated March 15, 2007 Newfield ▇▇▇▇▇▇ation ration Company & Ridgewood Energy Corporation - 2 -