Corporate Valuation, Oil & Gas
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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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Defying the Cycle: Haynesville Production Strength in a Shifting Gas Market
Defying the Cycle: Haynesville Production Strength in a Shifting Gas Market
Haynesville shale production defied broader market softness in 2025, leading major U.S. basins with double-digit year-over-year growth despite heightened volatility and sub-cycle drilling activity. Efficiency gains, DUC drawdowns, and Gulf Coast demand dynamics allowed operators to sustain output even as natural gas prices fluctuated sharply.
Haynesville Shale M&A Update: 2025 in Review
Haynesville Shale M&A Update: 2025 in Review
Key TakeawaysHaynesville remains a strategic LNG-linked basin. 2025 transactions emphasized long-duration natural gas exposure and proximity to Gulf Coast export infrastructure, reinforcing the basin’s importance in meeting global LNG demand.International utilities drove much of the activity. Japanese power and gas companies pursued direct upstream ownership, signaling a shift from traditional offtake agreements toward greater control over U.S. gas supply.M&A was selective but meaningful in scale and intent. While overall deal volume was limited, announced transactions and reported negotiations reflected deliberate, long-term positioning rather than opportunistic shale consolidation.OverviewM&A activity in the Haynesville Shale during 2025 was marked by strategic, LNG-linked transactions and renewed international investor interest in U.S. natural gas assets. While investors remained selective relative to prior shale upcycles, transactions that did occur reflected a clear pattern: buyers focused on long-duration gas exposure, scale, and proximity to Gulf Coast export markets rather than short-term development upside.Producers and capital providers increasingly refocused efforts on the Haynesville basin during the year, including raising capital to acquire both operating assets and mineral positions. This renewed attention followed a period of subdued transaction activity and underscored the basin’s continued relevance within global natural gas portfolios.Although the Haynesville did not experience the breadth of consolidation seen in some oil-weighted plays, the size, counterparties, and strategic motivations behind 2025 transactions reinforced the basin’s role as a long-term supply source for LNG-linked demand.Announced Upstream TransactionsTokyo Gas (TG Natural Resources) / ChevronIn April 2025, Tokyo Gas Co., through its U.S. joint venture TG Natural Resources, entered into an agreement to acquire a 70% interest in Chevron’s East Texas natural gas assets for $525 million. The assets include significant Haynesville exposure and were acquired through a combination of cash consideration and capital commitments.The transaction was characterized as part of Tokyo Gas’s broader strategy to secure long-term U.S. natural gas supply and expand its upstream footprint. The deal reflects a growing trend among international utilities to obtain direct exposure to U.S. shale gas through ownership interests rather than relying solely on long-term offtake contracts or third-party supply arrangements.From an M&A perspective, the transaction highlights continued willingness among major operators to monetize non-core or minority positions while retaining operational involvement, and it underscores the Haynesville’s attractiveness to buyers with a long-term, strategic view of gas demand.JERA / Williams & GEP Haynesville IIIn October 2025, JERA Co., Japan’s largest power generator, announced an agreement to acquire Haynesville shale gas production assets from Williams Companies and GEP Haynesville II, a joint venture between GeoSouthern Energy and Blackstone. The transaction was valued at approximately $1.5 billion.This acquisition marked JERA’s first direct investment in U.S. shale gas production, representing a notable expansion of the company’s upstream exposure and reinforcing JERA’s interest in securing supply from regions with strong connectivity to U.S. LNG export infrastructure.This transaction further illustrates the appeal of the Haynesville to international buyers seeking stable, scalable gas assets and highlights the role of upstream M&A as a tool for portfolio diversification among global utilities and energy companies.Reported Negotiations (Not Announced)Mitsubishi / Aethon Energy ManagementIn June 2025, Reuters reported that Mitsubishi Corp. was in discussions to acquire Aethon Energy Management, a privately held operator with substantial Haynesville production and midstream assets. The potential transaction was reported to be valued at approximately $8 billion, though Reuters emphasized that talks were ongoing and that no deal had been finalized at the time.While the transaction was not announced during 2025, the reported discussions were notable for both their scale and the identity of the potential buyer. Aethon has long been viewed as one of the largest private platforms in the Haynesville, and any transaction involving the company would represent a significant consolidation event within the basin.The reported talks underscored the depth of international interest in Haynesville-oriented platforms and highlighted the potential for large-scale transactions even in an otherwise measured M&A environment.ConclusionWhile overall deal volume remained selective, the transactions and reported negotiations in 2025 reflected sustained global interest in U.S. natural gas assets with long-term relevance. Collectively, the transactions and negotiations discussed above point to a Haynesville M&A landscape driven less by opportunistic consolidation and more by deliberate, long-term positioning. As global energy portfolios continue to evolve, the Haynesville basin remains a focal point for strategic investment, particularly for buyers seeking exposure tied to U.S. natural gas supply and LNG export linkages.
Mineral Aggregator Valuation Multiples Study Released-Data as of 06-11-2025
Mineral Aggregator Valuation Multiples Study Released

With Market Data as of June 11, 2025

Mercer Capital has thoughtfully analyzed the corporate and capital structures of the publicly traded mineral aggregators to derive meaningful indications of enterprise value. We have also calculated valuation multiples based on a variety of metrics, including distributions and reserves, as well as earnings and production on both a historical and forward-looking basis.

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