Cawley, Gillespie & Associates

What Cawley, Gillespie & Associates does

Cawley, Gillespie & Associates (CG&A) is a privately held petroleum engineering consulting firm headquartered in Fort Worth, Texas, with additional offices in Houston and Austin. Founded in 1961 through the merger of two earlier Fort Worth firms, CG&A provides independent reserve evaluations, economic analyses, fair market valuations, field and pipeline resource studies, and acquisition/divestiture support for oil and gas properties. Its reports are routinely used for U.S. SEC and Canadian CSA public company disclosures, reserves-based lending decisions, and M&A transactions, and the firm is approved by all major banks, key regional banks, and private equity firms for such engagements.

CG&A's service offering spans engineering (reserves and resources estimation), geoscience (wireline log analysis, subsurface interpretation, seismic mapping), economics (NPV, fair market valuations, stock exchange filings), reserve reporting under SEC, SPE-PRMS, and COGEH guidelines, acquisitions and divestitures, resource and pipeline studies, and a newer Strategic Energy Procurement practice covering load monetization and hedging analytics. Service delivery is built on industry-standard platforms—Aries, PhDWin, Petra, ArcGIS, and Microsoft Access—combined with the expertise of 30+ engineers, geologists, and technical analysts covering every major U.S. producing basin plus international experience.

The firm operates a project-based professional services model with quote-driven fees, selling to four primary segments: oil and gas companies (majors and independents including ExxonMobil, ConocoPhillips, and Hilcorp), financial institutions (Morgan Stanley, UBS, Bank of America, Wells Fargo, PJT), midstream/pipeline operators (Enbridge), and individual investors. Distribution is direct via the three Texas offices and through SPE/SPEE professional networks, NAPE events, and bank/PE referral pipelines. CG&A is led by President Todd Brooker, Executive Vice President Zane Meekins, and a senior partner-engineer bench with multi-decade tenures at the firm.

Name

Cawley, Gillespie & Associates

Legal name

Cawley, Gillespie and Associates, Inc.

Website

https://cgaus.com

Company type

Private

Founded year

1961

Operating status

Operating

Headcount range

11–50 employees

Short description

Cawley, Gillespie & Associates is a private petroleum engineering consulting firm founded in 1961 providing independent reserve evaluations, economic analyses, and fair market valuations to oil and gas companies, financial institutions, midstream operators, and individual investors.

Ownership category

akta.pro rank

Product category

Petroleum Engineering Consulting

NAICS

Environmental Consulting Services (54162)

SIC

Oil & Gas Field Services, Nec (1389)

akta.pro primary industry

Sustainability & ESG Consulting (BPAHACAK)

akta.pro secondary industry

Commercial & Industrial (C&I) Energy Brokerage & Procurement Advisory (EUAGAEAB)

Keywords

• Petroleum engineering consulting
• Reserve evaluations
• Oil and gas economics
• Fair market valuations
• Acquisition divestiture advisory

Headquarters

HQ city

Fort Worth

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Petroleum Consulting Services: Professional consulting services for oil and gas property evaluation including reserves reporting, economic evaluations, fair market valuations, field studies, and acquisition/divestiture analysis. Revenue generated through project-based fees for services to oil companies, banks, and investors.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Cawley, Gillespie & Associates (CG&A) is an independent petroleum engineering consulting firm that provides reserves and economics evaluations, fair market valuations, field and resource studies, reserve reporting (SEC, SPE-PRMS, COGEH), and acquisition/divestiture analysis for oil and gas properties. Its team of 30+ engineers, geologists and technical analysts integrates geological, geophysical, engineering and economic data to produce reserve estimates and economic forecasts used in financing, public filings and property transactions.

Product overview

Cawley, Gillespie & Associates (CG&A) is a petroleum consulting firm that does not offer software products or a platform. Instead, they provide professional petroleum engineering and geological consulting services delivered through direct client engagements. Their service offerings include: Engineering (estimation of petroleum reserves and resources), Geoscience (analyzing wireline logs, cores, subsurface interpretation, seismic mapping), Economics (economic evaluation of petroleum properties, fair market valuations, stock exchange filings), Reserve Reporting (classifying and quantifying reserves and resources, determining net present value), Acquisitions & Divestitures (evaluations for property transactions, data room assessments), Resource Studies (volume-oriented field studies and basin analyses), and Strategic Energy Procurement (energy procurement strategies and hedging solutions). CG&A serves oil and gas companies, financial institutions, midstream/pipeline companies, and individual investors. Their reports are used for SEC filings, financing, and public company disclosures. The firm has offices in Fort Worth, Houston, and Austin, Texas.

Differentiator

Problem solved

Functional benefit

Products and services

• Engineering Estimation of petroleum reserves and resources using performance, analogy, and volumetric/material balance methods; reservoir engineering analysis for oil and gas properties throughout North America and globally.
• Geoscience Geological and geophysical analysis including wireline log analysis, core evaluation, subsurface interpretation, and seismic mapping to support reserves estimation and field studies.
• Economics Economic evaluation of petroleum properties including fair market valuations, cash flow analysis, and economic inputs for stock exchange filings and transaction support.
• Reserve Reporting Classification and quantification of reserves and resources with determination of net present value, preparing reports compliant with SEC, SPE-PRMS, and COGEH guidelines for public and private disclosures.
• Acquisitions & Divestitures Independent reserves and economic evaluations, data room assessments, and expert support for oil and gas property acquisitions and divestitures.
• Resource Studies Volume-oriented field studies and basin analyses supporting pipeline resource studies, midstream volumetric assessments, gathering system volume modeling, and basin-level drilling trend analyses.
• Strategic Energy Procurement Energy procurement services integrating reservoir engineers, geoscientists, and power professionals with strategic power partners to deliver load monetization, tax and tariff optimization, hedging solutions, and data-driven energy analytics.

Quantifiable outcome

• Reviews and evaluates hundreds of thousands of oil and gas properties annually worth billions of dollars
• +1 more outcomes

Named customers19 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• McDaniel & Associates Consultants: Calgary-based petroleum consulting firm offering independent reserves evaluations, economic analyses, and geological services to Canadian and international clients — comparable to CG&A in delivering COGEH/SEC-compliant reserve reports.
• Netherland, Sewell & Associates: Texas-based independent petroleum engineering firm specializing in reserve estimates, economic evaluations, and geological studies for SEC/SEC-equivalent disclosures — a direct competitor to CG&A for major E&P and reserves-based lending mandates.
• Ryder Scott Company: One of the largest independent petroleum reserves evaluation firms in the U.S., offering reserves audits, resource assessments, and economic evaluations to E&P companies, banks, and investors — directly comparable to CG&A's core reserve-reporting business.
• Miller and Lents, Ltd. Houston-based independent oil and gas consulting firm offering reserves audits, economic evaluations, and expert testimony — a long-established direct peer in the Texas-based petroleum consulting market.
• Gaffney, Cline & Associates: Global petroleum consulting firm offering reserves evaluation, reservoir engineering, and integrated technical advisory for E&P companies, governments, and financial institutions — competing with CG&A on both U.S. and international mandates.
• W.D. Von Gonten & Co. Houston-based petroleum engineering and geology consulting firm providing reserves evaluation, reservoir engineering, and geological consulting — comparable to CG&A as a Texas-headquartered independent evaluator.
• DeGolyer & MacNaughton: Historic Dallas-based petroleum consulting firm providing independent reserve audits, geological studies, and reservoir engineering to major oil companies and financial institutions worldwide, overlapping with CG&A in reserves and economic evaluations.
• GLJ Petroleum Consultants: Canadian independent reserves evaluator with growing U.S. presence, providing NI 51-101 and SEC-compliant reserves reports and economic evaluations — directly comparable in service offering and client base.
• Sproule (now part of Energy Experts International): Canadian-based independent evaluator of oil and gas reserves providing reserves reports, resource evaluations, and COGEH-compliant disclosures — a direct peer in the North American reserves evaluation market where CG&A also operates.

Broad incumbents

• RPS Group (Energy Advisory): Global consulting firm with a sizable energy advisory practice covering reserves evaluation, subsurface consulting, and energy transition strategy — competes with CG&A in reserves work while offering a much broader portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/cawleygillespie
• YouTubeyoutube.com/channel/UCbH2QN_CIXBDoWj8TYT3c_Q
• LinkedInlinkedin.com/company/cawley-gillespie-&-associates-inc-
• Instagraminstagram.com/CawleyGillespie

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cawley, Gillespie & Associates