141,400 gross or 42,200 net acres (approximately 95% held by production) across Billings, Golden Valley, and McKenzie Counties in North Dakota. The properties are operated by Foundation Energy Management.
Our non-operated interests in the Barnett Shale, a natural gas and NGL producing shale reservoir, consist of approximately 17% average net working interest and approximately 14% average net revenue interest (inclusive of small overriding royalty interests). The approximately 123,800 gross or 21,000 net acres are held by production across nine North Texas counties. The oil and natural gas properties are primarily operated by Diversified Energy Company with approximately 10% of wells operated by six other operators.
Our non-operated interests in the Hamilton Dome Field, a secondary recovery field utilizing water injection wells to pressurize the reservoir, consist of approximately 24% average net working interest, with an associated 20% average net revenue interest (inclusive of a small overriding royalty interest). The approximately 5,900 gross acre unitized field, of which we hold approximately 1,400 net acres, is operated by Merit Energy Company, who owns the majority of the remaining working interest in the Hamilton Dome Field. The Hamilton Dome Field is located in the southwest region of the Big Horn Basin in northwest Wyoming.
Our non-operated interests in the Delhi Field, a CO2-EOR project, consist of approximately 24% average net working interest, with an associated 19% revenue interest and separate overriding royalty and mineral interests of approximately 7% yielding a total average net revenue interest of approximately 26%. The field is operated by Denbury Onshore LLC, a subsidiary of Exxon Mobil Corporation. The approximately 13,600 gross acre unitized Delhi Field, of which we hold approximately 3,200 net acres, is located in northeast Louisiana in Franklin, Madison, and Richland Parishes.
During the six months ended December 31, 2024, crude oil, natural gas and NGL production increased 13% compared to the year-ago period due to our recent acquisitions and development drilling activities since the year-ago period. Our crude oil, natural gas and NGL revenues had a modest increase of 1% over the same period despite our increase in production volumes due to declines in commodity prices. Our lease operating costs for the six months ended December 31, 2024 have decreased 10%, or $2.13 per BOE, compared to the year-ago period. See below for a further discussion around our results of operations and cash flow activities.
Recent Developments
Dividend Declaration
On February 10, 2025, Evolution’s Board of Directors approved and declared a quarterly dividend of $0.12 per common share payable March 31, 2025.
At-the-Market (“ATM”) Equity Sales Program
On October 21, 2024, we entered into an ATM equity Sales Agreement (the “ATM Sales Agreement”) with Roth Capital Partners, LLC (the “Lead Agent”), Northland Securities Inc., and A.G.P./Alliance Global Partners pursuant to which we may issue and sell, from time to time, up to $30.0 million of shares of common stock through or to the Lead Agent, acting as agent or principal. During the period ended December 31, 2024, we sold a total of approximately 0.4 million shares of our common stock under the ATM Sales Agreement for net proceeds of approximately $2.0 million, after deducting an initial $0.2 million in fees for due diligence incurred with the offering. We intend to use the net proceeds from any sales of common stock for general corporate purposes, including to redeem or repay outstanding indebtedness. We are not obligated to sell any shares of common stock in the future.
Risks and uncertainties
The oil and natural gas industry is a global market impacted by many factors, such as government regulations, particularly in the areas of trade sanctions, taxation, energy, climate change and the environment, geopolitical instability and armed conflicts (including between Russia and Ukraine and in the Middle East between Israel and Gaza), demand in Asian and European markets, and the extent to which members of OPEC and other oil exporting nations manage oil supply through export quotas. Natural gas prices are generally determined by North American supply and demand and