Corporate Valuation, Oil & Gas

June 12, 2017

3 Types of Mineral Interests

The US Mineral Exchange defines mineral interest as “the ownership of all rights to gas, oil, and other minerals at or below the surface of a tract of land.” Mineral interests are divided into three categories – royalty interests, working interests, and overriding royalty interests. Each is defined as follows:

  • Royalty Interest – an ownership in production that bears no cost in production. Royalty interest owners receive their share of production revenue before the working interest owners.
  • Working Interest – an ownership in a well that bears 100% of the cost of production. Working interest owners receive their share of the profit after (i) royalty owners have received their share and (ii) after all operating expenses have been paid.
  • Overriding Royalty Interest (ORRI) a percentage share of production, or the value derived from production, which is free of all costs of drilling and producing, and is created by the lessee or working interest owner and paid by the lessee or working interest owner.
A royalty interest is created when an exploration and production (E&P) company wants to extract gas, oil, or other minerals from privately held property. In this scenario, the E&P company could purchase the land, but it is generally much cheaper and more feasible to lease the rights to drill on the land. Under this type of agreement, the E&P company pays the landowner an up-front payment, called a lease bonus, as well as a monthly royalty payment – a specified percentage of all revenues generated by the minerals extracted from the land. Although the landowner profits from the drilling efforts on their property, they do not pay any production costs. A royalty interest is paid as long as minerals from the land generate revenue. Generally, if production stops so do royalty payments. Very rarely, however, some contracts specify certain levels of production which must be maintained. In the aforementioned situation, while landowners have a royalty interest, the E&P company has a working interest. As a result of the leasing agreement, the E&P company acquires the rights to the minerals on the property. This means that they bear the costs of exploration, drilling, and production, but they have rights to future cash flows generated once the wells are completed. The working interest owner must pay royalty interests, overriding royalty interests, and expenses before receiving their share of these cash flows. Overriding royalty interests are often used as an incentive for those who are affiliated with the drilling process but do not own the minerals or E&P company (a broker or geologist for, example). Owners of ORRI, like royalty interest owners, bear no cost of production but own a portion of the revenues generated by the drilling process. Unlike royalty interest owners, however, ORRI owners do not receive the royalty for the entirety of production; instead, they are bound by explicit leases, outlining the length of time in which the ORRI will be paid.

Current Issues Surrounding Mineral Interests

States also can receive royalties from oil production. Under the Gulf of Mexico Security Act of 2006, Texas, Louisiana, Alabama and Mississippi became part of a revenue sharing program from off-shore drilling royalties in the Gulf of Mexico. In his 2018 budget, however, President Trump has proposed to repeal this act in order to redistribute the funds to taxpayers. The White House believes that this will save approximately $3.6 billion over the next decade, but the proposal has been met with disapproval both from politicians and the oil and gas industry. Next year alone, the royalty disbursement to the four states is expected to total $275 million, which would be directed to support environmental protection, infrastructure improvements, and coastal restorations. It is unclear if this change will be approved, but the four states’ royalties, like many individual royalty interests, are enveloped in uncertainty in the current market.

Valuations of Mineral Interests

Along with the majority of the oil and gas industry, royalties were hit hard as a result of the oil price downturn beginning in 2014. Among other factors, the success of US shale drillers drove the supply of oil up and subsequently forced the oil price to decade-lows. As a result of shrinking margins for E&P companies, oil production drastically decreased. For some, oil production stopped completely and royalty payments were soon to follow. During the oil downturn, many royalty distributions shrank dramatically while others disappeared completely.  Over 120 companies filed for bankruptcy since the crash of commodity prices and most royalty owners were left to fend for themselves while uncertainty encompassed their mineral interests.

Trends in royalty trusts can be indicative of the value of individual royalty interests. Over the past two years, nineteen out of twenty royalty trusts have shown negative price performance. However, when focusing solely on the past year, this number shrinks to three of twenty trusts exhibiting negative price performance. This suggests that royalty trusts are on an upward trend, and by extension that royalty interests are recovering as well.  However, no two royalty trusts are alike. Differences abound in asset mix, asset location, term, and resource mix and the value of royalty interests vary due to these factors.

We will explore the valuation implications of each kind of interest in an upcoming blog post.

We have assisted many clients with various valuation and cash flow issues regarding royalty interests.  Contact Mercer Capital to discuss your needs in confidence and learn more about how we can help you succeed.


Our thanks to Paige Klump who drafted and did much of the research for this post in collaboration with our Energy Group.

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EP Second Quarter 2026 Permian Basin
E&P Second Quarter 2026

Region Focus: Permian Basin

The Permian Basin continued to demonstrate its resilience in the twelve-month period through June 30, 2026 (the review period). Despite a modest decline in rig counts, production reached new highs as operators continued to emphasize capital discipline, drilling efficiencies, and productivity improvements. Heightened geopolitical tensions introduced considerably greater volatility into commodity markets during the latter portion of the review period, yet oil prices ended above year-earlier levels and Permian public companies posted strong stock price appreciation. While basin operators continue to balance disciplined capital allocation with long-term production growth, the Permian remains the nation’s premier oil-producing basin and continues to demonstrate its ability to adapt to changing market conditions.
Just Released: Q2 2026 Oil & Gas Industry Newsletter
Just Released: Q2 2026 Oil & Gas Industry Newsletter
Regional Focus: The Permian BasinThe Permian continued to demonstrate its resilience in the twelve-month period through June 30, 2026 (the review period). Despite a modest decline in rig counts, production reached new highs as operators continued to emphasize capital discipline, drilling efficiencies, and productivity improvements. Heightened geopolitical tensions introduced considerably greater volatility into commodity markets during the latter portion of the review period, yet oil prices ended above year-earlier levels and Permian public companies posted strong stock price appreciation. While basin operators continue to balance disciplined capital allocation with long-term production growth, the Permian remains the nation’s premier oil-producing basin and continues to demonstrate its ability to adapt to changing market conditions.
Bryce Erickson Discusses the Changing Economics of Upstream Asset Valuations with Hart Energy
Bryce Erickson Discusses the Changing Economics of Upstream Asset Valuations with Hart Energy
Mercer Capital’s Energy Industry Team Leader, Bryce Erickson, ASA, MRICS, recently shared his perspective on upstream asset valuations in two features published by Hart Energy.Bryce joined other industry professionals at Hart Energy’s 2026 Energy Capital Conference, where he participated in the panel, “Asset Valuations in a High-Price World: Separating Signal from Noise.” The discussion examined how investors, lenders, and operators are assessing energy assets amid elevated commodity prices, increasingly scarce drilling inventory, and continued consolidation across the upstream sector.Markets Turn Their Attention to Tier 2 and Tier 3 AcreageIn a video interview with Hart Energy’s Chris Mathews, Bryce discusses how the scarcity of available Tier 1 acreage is directing greater attention toward Tier 2 and Tier 3 opportunities.As the inventory of premium drilling locations becomes increasingly concentrated, buyers are looking more closely at assets that may previously have received less attention. Higher commodity prices and continued improvements in drilling and completion techniques can make some of these locations more economically attractive. However, broad acreage classifications tell only part of the story. Investors must still examine the specific geology, operating costs, development plans, decline expectations, and risks associated with each asset. Bryce’s comments underscore the importance of disciplined, asset-specific underwriting as competition expands beyond traditionally defined core acreage.How the “Last Cheap Barrels” May Influence BidsHart Energy’s Lisa El-Amin further explores the relationship between inventory scarcity and upstream deal values in “How the Last Cheap Barrels May Be Shaping Today’s Bids” (subscription required).The article considers how competition is shifting toward a diminishing pool of drilling locations capable of generating attractive returns at approximately $50 oil, with much of that inventory concentrated in the Permian Basin. As low-breakeven locations become harder to acquire or replace, buyers may be willing to place greater value on assets offering durable inventory, favorable cost structures, and a long development runway. The result is an M&A market in which bids are increasingly influenced by the quality and scarcity of future drilling opportunities—not simply current production or near-term commodity prices.Valuation ImplicationsTogether, the two Hart Energy features highlight that asset quality and inventory durability are becoming more visible, and potentially more valuable, as the shale sector matures.Determining how these factors affect a particular company or asset requires careful analysis of its reserves, development inventory, cost structure, operating assumptions, and expected cash flows. Mercer Capital has assisted clients with a wide range of valuation needs in the upstream oil and gas industry across both conventional and unconventional plays in North America and around the world. Contact a Mercer Capital professional to discuss your valuation needs in confidence.

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