Corporate Valuation, Oil & Gas

June 6, 2018

Tax Reform and Purchase Price Allocations for Oil & Gas Companies

On December 22, 2017, President Trump signed The Tax Cuts and Jobs Act, which resulted in sweeping changes to the U.S. tax code.The Act decreased the corporate tax rate to 21% from 35%, in addition to modifying specific provisions around interest, depreciation, carrybacks, and repatriation taxes.The change in tax rate will have the biggest impact on purchase accounting. In the energy industry, this will manifest itself in several ways.  This blog post explores some of the impacts to valuations performed under fair value accounting in ASC 805 and ASC 820.

Cash Flows and Returns

When we evaluate prospective financial information, a lower tax rate will result in higher after-tax earnings.The value of the tax shield created by depreciation and deductions will be influenced by both the lower corporate tax rate (which reduces the tax shield’s value) and accelerated depreciation of qualifying capital equipment purchases (which increases the tax shield’s value).  This could mean incentives for energy-oriented companies to (i) create a more modernized drilling rig fleet sooner that are best suited for today’s multi-frac lateral wells and (ii) accelerated plans to create more infrastructure and pipelines in active basins such as the Permian, Bakken and Eagle Ford.  In addition, it also could drive more refinery and LNG liquefaction plant development.  

In most cases, a lower tax rate will increase cash flows, increasing the internal rate of return on acquisitions for a given purchase price.On the other hand, if lower tax rates drive higher purchase prices, internal rates of return may be unchanged.In terms of the weighted average cost of capital (WACC), the lower tax rate actually increases the after-tax cost of debt.Keeping other inputs constant, this modestly increases WACCs.

Relief from Royalty

Under the relief from royalty method, after-tax royalties avoided increase as the tax rate falls.However, the tax amortization benefit (TAB) component of the intangible value also declines as a result of the lower tax rate, which serves to partially offset the increase in after-tax cash flows.

Scenario Analysis

In a scenario analysis used to value a noncompete agreement, a lower tax rate will again decrease the tax amortization benefit.Since both scenarios under the with and without approach will reflect the same tax rate, the impact of the new lower rate will be muted.As a result, the fair value of noncompete agreements may well be somewhat lower under the new tax rate.

Cost Approach

The cost approach, which is often used to value assets such as the assembled workforce or some technologies, the impact depends on whether a pre-tax or after-tax measurement basis is used.If fair value is measured on a pre-tax basis, the fair value of such assets is unaffected.If measured on an after-tax basis, costs avoided net of tax will be higher under lower tax rates, although this gain will be offset somewhat by the decrease in the TAB. 

Multi-Period Excess Earnings Method 

The impact of the tax rate on assets valued under the Multi-Period Excess Earnings Method (MPEEM) is more ambiguous since two key elements will be affected – the contributory asset charges and the tax rate used to derive after-tax cash flows.On the cash flow side of things, the lower tax rate will result in higher cash flow but a lower TAB.As far as contributory assets are concerned:

  • Relief from royalty asset charges will increase under a lower tax rate

  • With and without scenario analysis with level payments charges will potentially decrease due to the lower base value

  • Cost approach asset charges may increase or decrease depending on the net effect of taxes and TAB calculations

Reserves & Goodwill 

The net impact of a lower tax rate on goodwill will vary by transaction.  Since reserves are typically viewed through a pre-tax lens, the value of reserves could be muted (all else held constant).  However, we note that if tax incentives increase CapEx and drilling plans, then more reserves could move up the category chain (P2 to P1 for example) and thus increase the fair value of reserves.  If the lower tax rate results in a higher transaction price, the aggregate increase in fair value will likely result in a larger allocation to goodwill.  This would apply more to intangible based energy companies.  Upstream companies typically do not book goodwill.  If, instead, the lower tax rate increases the projected IRR on a transaction, the impact on residual goodwill is harder to predict and will depend on the composition of the assets acquired.

The changes to corporate taxes under the new bill are wide-ranging.In addition to the effect of lower rates discussed in this post, fair value specialists need to be alert to how other specific provisions of the bill may influence individual energy companies.


Impact of Tax Rate Decrease on Valuation Method

  • Cash Flows/Returns Higher after-tax cash flows/impact on returns depends on transaction price

  • Tax Amortization Benefits Decrease

  • Relief from Royalty Method Increase (potential offset by decrease in TAB)

  • Cost Approach (pre-tax) No Change

  • Cost Approach (post-tax) Increase (potential offset by decrease in TAB)

  • With and Without Scenario Potentially lower (potential offset by decrease in TAB)

  • MPEEM May Increase or Decrease (depends on magnitude of other changes)

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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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