Top 12 energy M&A advisors in Houston for upstream and midstream deals in 2026

21 June 2026·9 min read

Energy M&A advisors in Houston handled over $200B in upstream, midstream, and power deals in 2025. This covers 12 firms that specialize in oil and gas M&A - deal sizes, sector focus, and recent transactions.

Energy M&A in Houston in 2026

Houston energy M&A is driven by Permian consolidation, LNG buildout, and power infrastructure demand. AI data centers and export terminals are creating new buyer categories in 2026.

Set up a virtual data room before your first advisor meeting in Houston. Buyers expect organized reserves, contracts, and financials from day one.

See our broader Houston M&A advisor guide if your deal spans multiple sectors. This page focuses on advisors that specialize in oil and gas, midstream, and energy transition.

Most energy advisors in Houston run dual-track sell-side processes with PE and strategic buyers. Know your reserve life, basin position, and exit timeline before your first call.

AdvisorDeal TypeDeal SizeSector FocusWebsite
TPH (Perella Weinberg)TPH (Perella Weinberg)Both$250M+Upstream, midstream, energy transition, powerpwpartners.com
Petrie PartnersPetrie PartnersBoth$500M+Upstream oil and gas, E&Ppetriepartners.com
Scotia WaterousScotia WaterousBoth$100M-$5B+Upstream oil and gas, midstream, energy infrastructurescotiabankenergy.com
RBC Richardson BarrRBC Richardson BarrBoth$50M-$5B+Energy, oil and gas, power, utilitiesrbccm.com
LazardLazardBoth$100M-$50B+Energy, power and utilities, oil and gas, infrastructurelazard.com
GulfStar GroupGulfStar GroupBoth$25M-$350MEnergy, oilfield services, industrials, consumergulfstargroup.com
Intrepid Financial PartnersIntrepid Financial PartnersBoth$25M-$500MTraditional energy, energy transition, oil and gasintrepidfp.com
Piper Sandler (Simmons Energy)Piper Sandler (Simmons Energy)Both$50M-$2B+Upstream, midstream, oilfield services, energy transitionpipersandler.com
CitiCitiBoth$500M+Energy, power, oil and gas, LNG, midstreamciti.com
Barclays Natural ResourcesBarclays Natural ResourcesBoth$200M+Oil and gas, midstream, power, mininghome.barclays
JefferiesJefferiesBoth$50M-$2B+Energy, oilfield services, industrials, chemicalsjefferies.com
Wells Fargo SecuritiesWells Fargo SecuritiesBoth$100M-$5B+Energy, upstream, midstream, powerwellsfargo.com

Upstream vs midstream: key differences

Upstream deals center on reserves, production rates, and basin position. Buyers assess PDP value, undeveloped acreage, and operating costs per barrel or Mcf.

Midstream deals focus on contracted throughput, take-or-pay structures, and customer creditworthiness. Fee-based cash flow drives valuation multiples in midstream more than in E&P.

Advisors that specialize in both often run more competitive processes. They can attract upstream consolidators and infrastructure funds to the same sale simultaneously.

Energy transition assets - like CO2 pipelines, hydrogen hubs, and storage - are now priced similarly to midstream. Buyers include utilities, PE infrastructure funds, and foreign strategics.

What energy buyers check first

Reserve engineer reports and production decline curves are the first items institutional buyers review in energy M&A. Have an independent reserve report ready before marketing starts.

Midstream contract terms and counterparty creditworthiness are reviewed within the first 48 hours of data room access. Use Ellty's document analytics to see which buyers open your contracts and how long they read.

Environmental liabilities, plugging obligations, and regulatory permits are reviewed early in upstream diligence. Sellers with clean environmental records move through diligence faster.

Commodity hedge book, transportation agreements, and basis differentials round out the first-pass review for most energy PE buyers. Prepare answers before receiving buyer questions.

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12 Houston energy M&A advisors

These firms lead energy M&A from Houston in 2026, covering upstream oil and gas, midstream, power infrastructure, and energy transition. Profiles include deal size, sector specialization, and recent transactions.

1. TPH (Perella Weinberg Partners)

TPH is the dedicated energy arm of Perella Weinberg Partners and the most recognizable energy boutique brand for large mandates.

Recent Deals: Active in upstream, midstream, and energy transition M&A through 2025-2026 as the energy advisory division of Perella Weinberg Partners. TPH is the premier energy boutique for mandates above $250M with deep PE and strategic buyer relationships across the sector.

LinkedIn: Perella Weinberg Partners on LinkedIn

Sector Focus: Upstream, midstream, energy transition, power

Deal Type: Both

Deal Size: $250M+

Location: Houston, TX and New York, NY

Website: pwpartners.com

2. Petrie Partners

Petrie Partners advised Pioneer Natural Resources on its $59.5B sale to ExxonMobil - one of the most significant upstream mandates in US history.

Recent Deals: Advised Pioneer Natural Resources on its $59.5B sale to ExxonMobil. Consistently active in large-cap upstream oil and gas M&A through 2025-2026 with a reputation for top-dollar upstream sell-side outcomes.

LinkedIn: Petrie Partners on LinkedIn

Sector Focus: Upstream oil and gas, exploration and production

Deal Type: Both (primarily sell-side)

Deal Size: $500M+

Location: Denver, CO with active Houston market coverage

Website: petriepartners.com

3. Scotia Waterous

Scotia Waterous is Scotiabank's dedicated energy advisory arm covering US and Canadian upstream and midstream deals.

Recent Deals: Active in upstream oil and gas, midstream, and energy infrastructure M&A through 2025-2026 as Scotiabank's dedicated energy advisory arm, covering US and Canadian energy deal flow with deep PE and strategic buyer relationships.

LinkedIn: Scotia Waterous on LinkedIn

Sector Focus: Upstream oil and gas, midstream, energy infrastructure

Deal Type: Both

Deal Size: $100M-$5B+

Location: Houston, TX and Calgary, Canada

Website: scotiabankenergy.com

4. RBC Richardson Barr

RBC Richardson Barr is RBC Capital Markets' Houston energy team with global cross-border reach and leading upstream market share.

Recent Deals: Active in energy M&A across upstream, midstream, and power sectors through 2025-2026. RBC Richardson Barr provides global cross-border execution from Houston with worldwide presence and leading market share across energy financing and M&A advisory.

LinkedIn: RBC Capital Markets on LinkedIn

Sector Focus: Energy, oil and gas, power, utilities, midstream

Deal Type: Both

Deal Size: $50M-$5B+

Location: Houston, TX (RBC Richardson Barr)

Website: rbccm.com

5. Lazard

Lazard ranked #1 in US power M&A in 2024 with 23 transactions worth $22.8B and is equally active in oil and gas.

Recent Deals: Advised on Oncor Electric Delivery M&A ($9.45B, March 2025). Advised Invenergy on $3B strategic growth capital raise (January 2025). Ranked #1 US power M&A advisor in 2024 with 23 transactions and $22.8B total deal value.

LinkedIn: Lazard on LinkedIn

Sector Focus: Energy, power and utilities, oil and gas, infrastructure

Deal Type: Both

Deal Size: $100M-$50B+

Location: Houston, TX and New York, NY

Website: lazard.com

6. GulfStar Group

GulfStar is Houston's most active mid-market energy boutique, covering oilfield services and energy alongside industrials.

Recent Deals: Won Energy & Oilfield Services Deal of Year and Houston Investment Bank Deal of Year at ACG Houston April 2026. Advised on acquisition of Cal-Chlor by PVS Chemicals (May 2026). Over 750 completed transactions since 1990.

LinkedIn: GulfStar Group on LinkedIn

Sector Focus: Energy, oilfield services, industrials, consumer, business services

Deal Type: Both

Deal Size: $25M-$350M

Location: Houston, TX

Website: gulfstargroup.com

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7. Intrepid Financial Partners

Intrepid Financial Partners is a pure-play energy boutique covering traditional energy and the full energy transition spectrum.

Recent Deals: Active in traditional energy and energy transition M&A through 2025-2026, advising companies and capital providers on corporate mergers, acquisitions, divestitures, and strategic initiatives from their Houston base.

LinkedIn: Intrepid Financial Partners on LinkedIn

Sector Focus: Traditional energy, energy transition, oil and gas, power

Deal Type: Both

Deal Size: $25M-$500M

Location: Houston, TX

Website: intrepidfp.com

8. Piper Sandler (Simmons Energy)

Piper Sandler's Simmons Energy division was named 2025 Outstanding M&A Investment Bank of the Year by the Global M&A Network.

Recent Deals: Named 2025 Outstanding M&A Investment Bank of the Year by the Global M&A Network. Simmons Energy division active in upstream, midstream, and oilfield services M&A through 2025-2026 with deep sector buyer relationships.

LinkedIn: Piper Sandler on LinkedIn

Sector Focus: Upstream, midstream, oilfield services, energy transition

Deal Type: Both

Deal Size: $50M-$2B+

Location: Houston, TX and national coverage

Website: pipersandler.com

9. Citi

Citi is active in large-cap energy M&A across oil and gas, LNG, midstream infrastructure, and power from its Houston office.

Recent Deals: Active in large-cap energy, power, LNG, and midstream M&A through 2025-2026 with dedicated Houston energy teams covering integrated energy, upstream, and infrastructure transactions globally.

LinkedIn: Citi on LinkedIn

Sector Focus: Energy, power, oil and gas, LNG, midstream infrastructure

Deal Type: Both

Deal Size: $500M+

Location: Houston, TX and New York, NY

Website: citi.com

10. Barclays Natural Resources

Barclays' Natural Resources team covered Equitrans-EQT and recent ONEOK transactions and is active in Houston energy M&A.

Recent Deals: Active in oil and gas, midstream, and power M&A through 2025-2026. Barclays Natural Resources is mid-tier in Houston energy M&A, included on deals like Equitrans/EQT and recent ONEOK transactions from its Houston and New York offices.

LinkedIn: Barclays on LinkedIn

Sector Focus: Oil and gas, midstream, power, natural resources

Deal Type: Both

Deal Size: $200M+

Location: Houston, TX and New York, NY

Website: home.barclays/investment-bank

11. Jefferies

Jefferies' Houston energy team covers oilfield services, industrials, and E&P alongside chemicals M&A.

Recent Deals: Active in energy, oilfield services, industrials, and chemicals M&A through 2025-2026 with Houston-based deal teams covering middle and large-cap transactions across the US energy sector.

LinkedIn: Jefferies on LinkedIn

Sector Focus: Energy, oilfield services, industrials, chemicals

Deal Type: Both

Deal Size: $50M-$2B+

Location: Houston, TX and national coverage

Website: jefferies.com

12. Wells Fargo Securities

Wells Fargo Securities advised on APA Corp's $10B deal and the Southwestern merger, making it underrated for Houston energy M&A.

Recent Deals: Advised on APA Corp's $10B deal and the Southwestern merger. Wells Fargo is underrated for energy M&A, leading some mid-market deals and included on large-cap transactions in oil and gas and midstream through 2025-2026.

LinkedIn: Wells Fargo on LinkedIn

Sector Focus: Energy, upstream, midstream, power

Deal Type: Both

Deal Size: $100M-$5B+

Location: Houston, TX and national coverage

Website: wellsfargo.com

How energy deals are priced

Upstream oil and gas deals are priced primarily on reserve value using PV10, cash flow multiples, and production metrics. PDP value anchors most bids before undeveloped acreage is added.

Midstream is valued on EBITDA multiples adjusted for contract quality and remaining term. Take-or-pay volumes with investment-grade counterparties trade at higher multiples than at-risk volume.

Power and storage deals use capacity revenue, offtake contracts, and merchant exposure to set valuation. Interconnection queue position is increasingly a key value driver in 2026.

Energy advisors walk sellers through all three frameworks before launching a process. See the full M&A process guide to understand how deal structure affects final price.

Setting up a data room for energy M&A

Organize your reserve report, production history, and audited financials before approaching any advisor. Use Ellty's password protection to control teaser access before NDAs are signed.

Stage your data room by deal phase. Share production summaries in Phase 1, full reserve reports after LOI, and title documents during final diligence.

Use screenshot protection on sensitive reserve reports and commodity hedge data. Buyers should see the numbers but not be able to lift and share them outside the process.

A well-organized data room signals seller maturity to advisors and buyers alike. Houston PE buyers have seen poorly organized rooms and will discount sellers who cannot manage their own diligence process.

How to choose your energy M&A advisor

Match advisor specialty to your asset type. Pure upstream E&P assets belong with Petrie, TPH, or Scotia Waterous - not a general M&A firm.

Size your mandate to the right tier. Mid-market energy boutiques like GulfStar and Intrepid cover deals under $350M with more attention than bulge brackets can offer at that level.

Ask for a named deal list with buyer identities and closing dates. Any advisor pitching Houston energy M&A should show at least 3-5 closed deals in your sub-sector within the last 24 months.

See how advisors work in adjacent markets via the Boston M&A advisor guide. Comparing approaches across markets helps you evaluate what your Houston advisor proposes.

How Ellty helps you run an energy M&A process

You have your Houston energy advisor shortlist. Here is how to set up your data room before buyer outreach begins.

  1. 1.
    Upload reserve reports, production data, and audited financials
    Add your independent reserve report and three years of financials before advisors contact buyers. Structure documents by asset and date so buyers can navigate independently.
    Upload file in data room
  2. 2.
    Grant phased access by deal stage
    Share production summaries and teaser before NDA. Open full reserves and contracts after NDA. Unlock title docs and environmental files after LOI. Ellty lets you set this by folder.
    Set permissions data room
  3. 3.
    Monitor which buyers spend time on key documents
    See which buyers open your reserve engineer report and how long they read it. Real-time activity tracking helps you follow up at the right moment in the process.
    Analytics data room
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Common questions about Houston energy M&A advisors

What makes a good Houston energy M&A advisor?
Sector specialization, a named deal list in your sub-sector, and active buyer relationships in your basin. Generic M&A advisors without energy expertise cost sellers money at closing.
How are oil and gas assets valued for M&A?
Upstream assets are valued on PDP reserve value using PV10, production multiples, and cash flow. Undeveloped acreage, midstream contracts, and hedge book are added or adjusted on top of base reserve value.
Should I hire a boutique or a bulge bracket for energy M&A?
Boutiques like TPH, Petrie, and Scotia Waterous typically run better sell-side processes for pure energy assets. Bulge brackets add value when cross-border buyers or public market alternatives are part of the exit strategy.
When should I open a data room in an energy deal?
Open a limited data room - teaser, production summary, and asset overview - before NDAs are signed. Open the full reserve report and contracts after NDA. Open title and environmental docs after LOI is signed.
Do Houston energy M&A advisors handle cross-border deals?
Yes - firms like Scotia Waterous, RBC Richardson Barr, Citi, and Barclays have active cross-border buyer networks. Japanese, Canadian, and Middle Eastern buyers are among the most active in Houston energy deals in 2026.

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