Ensign Natural Resources
Ensign Natural Resources is a Houston-based, NGP-backed exploration and production company that acquires, develops, and produces US unconventional oil, gas, and NGL resources. Founded in 2017, it divested its Eagle Ford assets to Marathon Oil in 2022 and is now rebuilding through new strategic acquisitions.
- Company typePrivate
- Founded2017
- HeadquartersHouston, United States
- Headcount101–250
- GTM typeB2B
- OfferingServices
What Ensign Natural Resources does
Ensign Natural Resources is a Houston-based, private equity-backed exploration and production company that acquires, develops, and produces US unconventional resources, historically focused on the Eagle Ford Shale in South Texas. Founded in December 2017 by Brett Pennington (formerly of Murphy Oil and ExxonMobil) and backed by NGP (Natural Gas Partners), the firm operated approximately 130,000 net acres and 655 Eagle Ford wells that were 100% held by production and 99% operated until those assets were divested to Marathon Oil EF II effective October 1, 2022, in what was described as one of the most lucrative private equity transactions in the basin.
The company generates revenue through the production and sale of oil, natural gas, and natural gas liquids (NGLs) from operated unconventional wells, selling commodity output to refineries and midstream processors via direct B2B commercial relationships. Its core technology is a data-driven decision-making operating model with technology integration across operations, supported by leadership with 20+ years of reservoir engineering, drilling and completions, and subsurface experience from major operators including ExxonMobil, Murphy Oil, Anadarko, Civitas Resources, Endeavor Energy Resources, and Earthstone Energy.
Following the 2022 divestiture, Ensign is in a "second iteration" actively rebuilding through new strategic asset acquisitions under the same founder-led, NGP-backed platform. The firm is hiring across functions and signals continued growth through disciplined, data-driven unconventional resource development.
Ensign Natural Resources firmographics
Firmographics- Name
- Ensign Natural Resources
- Legal name
- Ensign Natural Resources LLC
- Website
- https://ensignnr.com
- Company type
- Private
- Founded year
- 2017
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Ensign Natural Resources is a Houston-based, NGP-backed exploration and production company that acquires, develops, and produces US unconventional oil, gas, and NGL resources. Founded in 2017, it divested its Eagle Ford assets to Marathon Oil in 2022 and is now rebuilding through new strategic acquisitions.
- Ownership category
- akta.pro rank
Ensign Natural Resources industry classification
Industry- Product category
- Oil and Gas Exploration & Production
- NAICS
- Oil and Gas Extraction (211), Crude Petroleum Extraction (211120), Natural Gas Extraction (21113), Crude Petroleum Extraction (21112)
- SIC
- Crude Petroleum & Natural Gas (1311)
- akta.pro primary industry
- Unconventional Resources Development (Shale/Tight, CBM) (EUALAAAH)
- akta.pro secondary industries
- Unconventional Gas E&P (Shale/Tight Gas) (EUAAAAAC), Drilling & Well Construction (E&P Operator-led) (EUALAAAD)
Keywords
Where Ensign Natural Resources is headquartered
LocationHeadquarters
- HQ city
- Houston
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Ensign Natural Resources business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Operations, Supply Chain, Personnel, Infrastructure, Technology or R&D, Others
Revenue model
- Oil and Gas Production: Revenue generated from production and sale of oil, natural gas, and natural gas liquids (NGL) from operated Eagle Ford wells. The company operates and produces hydrocarbons from unconventional resources, selling commodity output to refineries and midstream processors.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels4 records
Ensign Natural Resources product offering
Product offeringCore offering
Ensign Natural Resources acquires, develops, and produces oil, natural gas, and natural gas liquids (NGLs) from US unconventional (shale) resources, historically focused on the Eagle Ford Shale across approximately 130,000 net acres in the Karnes trough area of South Texas. The company monetizes hydrocarbon production through direct sales to refineries and midstream processors, and is currently rebuilding its asset base after divesting its operated Eagle Ford wells to Marathon Oil in late 2022. Supporting activities include produced water recycling, emissions reduction initiatives, and disciplined asset optimization.
Product overview
Ensign Natural Resources is an E&P company offering a single core product/service: oil and gas exploration and production from US unconventional (shale) resources. The company operates primarily in the Eagle Ford Shale, producing oil, natural gas, and NGLs. Supporting operational offerings include water management (produced water recycling at 65% capture rate), emissions reduction initiatives, and sustainability programs.
Differentiator
Problem solved
Functional benefit
Products and services
- Oil & Gas Exploration and Production Acquisition, development, and production of oil, natural gas, and natural gas liquids (NGLs) from US unconventional (shale) resources, with historical concentration in the Eagle Ford Shale across approximately 130,000 net acres in the Karnes trough area of South Texas. Output is sold to refineries and midstream processors.
Companies that use Ensign Natural Resources
Customer profileNamed customers1 record
Segments2 records
Ideal customer profiles3 records
Ensign Natural Resources technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Ensign Natural Resources partnerships and signals
Strategic signalScale indicators6 records
Recent moves6 records
Expansion highlights4 records
Ensign Natural Resources competitors and assessment
Company assessmentDirect peers
- SilverBow Resources: Independent US E&P operating in the Eagle Ford and Permian basins with a focus on unconventional oil and gas production. Comparable to Ensign as a mid-cap, operator-led Eagle Ford producer pursuing growth through acquisitions and development.
- Crescent Energy Company: US upstream E&P formed through Independence Contango merger with private equity backing (KKR/EnCap). Directly comparable to Ensign as a recently assembled, PE-backed unconventional platform pursuing acquisitions and development across multiple basins.
- Magnolia Oil & Gas Corporation: Independent US E&P with a primary focus on the Eagle Ford Shale in South Texas. Highly comparable to Ensign: similar basin focus, operator-led model, emphasis on data-driven development and disciplined capital allocation, and similar size/scale tier.
- Vital Energy: Independent US E&P (formerly Laredo Petroleum) focused on the Midland Basin, similar size tier to Ensign. Comparable as a small-to-mid cap operator pursuing acquisitions and disciplined unconventional development with private-equity heritage.
- Granite Ridge Resources: Non-operated and operated Eagle Ford-focused E&P spun out of Marathon Oil, with assets directly overlapping the basin where Ensign previously operated. Highly comparable as an Eagle Ford pure-play of similar vintage and scale.
- Riley Exploration Permian: Small-cap US upstream E&P focused on the Permian Basin. Comparable to Ensign as a similarly sized, operator-led unconventional platform pursuing growth through development and bolt-on acquisitions in a single core basin.
- Civitas Resources: US upstream operator formed from the merger of Extraction Oil & Gas and Bonanza Creek, with assets in the Permian, DJ Basin, and Eagle Ford. Comparable to Ensign as a private-equity-rooted unconventional operator that scaled through consolidation, though larger and publicly traded.
- Earthstone Energy: Independent US E&P operating in the Permian and Eagle Ford basins (acquired by Permian Resources in 2024). Mark Lumpkin (Ensign's CFO) was previously CFO at Earthstone, indicating deep operational overlap and a directly comparable scale/strategy profile.
Broad incumbents
- Permian Resources: Larger-scale Permian-focused US upstream operator formed from the Centennial and Colgate mergers. Comparable to Ensign as a public unconventional operator pursuing accretive M&A (including the Earthstone acquisition) and disciplined capital allocation, though at substantially greater scale.
Others
- Sitio Royalties Corp. US mineral and royalty rights company with significant Eagle Ford exposure, formed via a mergers of Brigham Minerals and Sitio Royalties. Comparable to Ensign's mineral-rights-owner counterparty segment and adjacent to the Eagle Ford value chain.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks6 records
Key highlights6 records
Customer concentration
Ensign Natural Resources social profiles
Digital presenceEnsign Natural Resources financial estimates
Financial estimateRevenue estimate
Valuation estimate
Ensign Natural Resources leadership team
Management profileNumber of profiles
Profiles11 records
Ensign Natural Resources funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Ensign Natural Resources M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Ensign Natural Resources
What does Ensign Natural Resources do?
Ensign Natural Resources acquires, develops, and produces oil, natural gas, and natural gas liquids (NGLs) from US unconventional (shale) resources, historically focused on the Eagle Ford Shale across approximately 130,000 net acres in the Karnes trough area of South Texas. The company monetizes hydrocarbon production through direct sales to refineries and midstream processors, and is currently rebuilding its asset base after divesting its operated Eagle Ford wells to Marathon Oil in late 2022. Supporting activities include produced water recycling, emissions reduction initiatives, and disciplined asset optimization.
Is Ensign Natural Resources a public or private company?
Ensign Natural Resources is a private company. It is classified as private equity controlled and is currently operating.
When was Ensign Natural Resources founded?
Ensign Natural Resources was founded in 2017. It employs 101 to 250 people.
Where is Ensign Natural Resources based?
Ensign Natural Resources is headquartered in Houston, United States, in the North America region.
How does Ensign Natural Resources make money?
One revenue line is on record: oil and Gas Production.
Who are Ensign Natural Resources's main competitors?
Direct peers on record are SilverBow Resources, Crescent Energy Company, Magnolia Oil & Gas Corporation, Vital Energy, Granite Ridge Resources, Riley Exploration Permian, Civitas Resources and Earthstone Energy. Permian Resources is listed as a broad incumbent. Sitio Royalties Corp. is listed as an others.
Does Ensign Natural Resources have an API?
No public API is recorded for Ensign Natural Resources.
What industry is Ensign Natural Resources in?
Ensign Natural Resources's product category is Oil and Gas Exploration & Production. Its primary akta.pro industry code is EUALAAAH, Unconventional Resources Development (Shale/Tight, CBM), with a secondary code of EUAAAAAC, Unconventional Gas E&P (Shale/Tight Gas). Its NAICS code is 211 and its SIC code is 1311.