Tulsa Petroleum Engineering

Petroleum Engineering and Geological Consulting Services in Tulsa, OK

What You’ll Learn

  • Haas & Cobb provides independent reserves audits, reservoir simulation, and subsurface modeling for Tulsa operators and the institutions that finance them.
  • Our petroleum engineering consultants serving Tulsa pair decades of upstream experience with SEC-compliant methodology built for acquisition due diligence, borrowing base redeterminations, and field development planning.
  • Every evaluation is transparent and data-driven, documented so it holds up under lender review and regulatory audit.
  • Our senior professionals handle the work directly. Contact us to talk through your asset.
Independent Reserves Reports And Auditing, Petroleum Evaluations

Independent Petroleum Engineering Consulting for Tulsa Operators

Operators working Oklahoma reservoirs deal with variable rock quality, mixed-vintage well stock, and completion designs that shift from bench to bench. When an in-house team runs out of bandwidth for a full reserves evaluation or a detailed subsurface model, outside technical review becomes the practical way to close financing, finish a transaction, or decide where the next dollar of capital goes.

Our Tulsa petroleum engineering consultants work with SEC-compliant reserves reports, simulation studies, and due diligence backing that lenders and auditors are prepared to accept. We work as an unbiased advisor rather than a party to the deal, which is what makes the conclusions worth something.

Geological Consulting for Tulsa Asset Evaluation

Sound subsurface work drives sound development decisions. Our geological consulting services for Tulsa clients bring together petrophysics, structural interpretation, and reservoir quality mapping to lower drilling risk and sharpen completion design.

Our geological team handles:

  • Stratigraphic correlation and facies mapping across the target section
  • Petrophysical log analysis to flag productive intervals and guide lateral placement
  • Structural interpretation from 3D seismic to map faults, fracture trends, and drilling hazards
  • Reservoir quality assessment tying porosity, permeability, and organic content to actual production
  • Geomechanical modeling that feeds completion and hydraulic fracturing design

Whether you need an independent look ahead of an acquisition or a full model for development planning, the deliverable is grounded in the data and the method is written down.

SEC-Compliant Reserves Audits

Banks and auditors want third-party validation before credit is extended or a transaction closes. We prepare reserves audits and limited-scope evaluations built to meet those standards.

Our reserves process covers these steps.

  • Data review: Production history, well logs, completion records, operating costs, and development plans
  • Engineering analysis: Decline curve work, type curve development, and probabilistic forecasting under SPE-PRMS guidelines
  • Economic modeling: Cash flow projections using current pricing, operating expense, and capital assumptions
  • Documentation: Stated methodology, stated assumptions, and quantified uncertainty in every report

Reports are prepared under SEC Regulation S-X and SPE-PRMS standards. Senior staff stays in direct contact through the engagement instead of handing you to a junior desk.

Reservoir Simulation and Production Optimization

Getting more out of a well takes real modeling rather than a spreadsheet guess. Our Tulsa petroleum engineering and geological consultants apply numerical simulation to test completion performance, weigh artificial lift options, and forecast long-term output.

Simulation work supports several decisions:

  • Completion design: Stage spacing, proppant loading, and fluid volume tradeoffs
  • Production forecasting: Probabilistic declines that account for reservoir variability and operating limits
  • Artificial lift evaluation: Comparing plunger lift, gas lift, and ESP systems to extend economic life
  • Infill drilling analysis: Parent and child well interference and spacing that protects value

 

Dr.-Bill-Cobb

Acquisition Due Diligence and Transaction Support

Deals move fast, and the technical answer has to hold. Our due diligence support for buyers, private equity sponsors, and lenders tests asset quality and checks what the seller is claiming.

Transaction support includes the items below:

  • Reserves validation: Independent audit of seller-provided estimates
  • Technical risk assessment: Drilling hazards, completion challenges, and operational constraints
  • Economic sensitivity analysis: Cash flow stress tested across multiple price and cost cases
  • Regulatory compliance review: Permit status, environmental exposure, and plugging obligations

Why Tulsa Operators Work With Haas & Cobb

Haas & Cobb formed in 2024 through the merger of Haas Engineering, founded in 1980, and W.M. Cobb & Associates, founded in 1983. That is more than four decades of legacy behind each side of the firm. Our boutique size means you talk to senior people, and our deliverables are built to institutional standards.

A few things set us apart:

  • Direct senior access: Licensed engineers, geologists, petrophysicists, and analysts on your project without layers in between
  • Integrated scope: Reserves audits alongside operational consulting, which most audit firms do not offer
  • Transparent method: Documentation and open dialogue at every step
  • Regulatory acceptance: Reports built to SEC Regulation S-X and SPE-PRMS standards

If it isn’t right, it isn’t good. That standard shapes every engagement our Tulsa petroleum engineering consultants take.

Frequently Asked Questions

What qualifies Haas & Cobb to evaluate our assets?

Our team includes licensed petroleum engineers and geologists with advanced degrees and active SPE and SPEE involvement. Bill Cobb holds a Ph.D. in Petroleum Engineering from Stanford and brings more than 40 years as an engineering executive, consultant, and educator. All reports comply with SEC Regulation S-X and SPE-PRMS standards.

How long does a reserves audit take?

That depends on portfolio size and how complete the data is. A typical audit runs four to eight weeks from data receipt to final report. For transaction-driven work our petroleum engineering and geological consultants for Tulsa can often deliver preliminary results in two to three weeks to support a closing deadline.

Do you provide operational consulting as well as audits?

Yes. We handle drilling and completion optimization, production engineering, artificial lift design, field development planning, EOR and waterflood studies, gas storage and CCUS work, technical training, and expert witness testimony.

Will lenders and auditors accept your reserves reports?

Our reports are prepared under SEC Regulation S-X and SPE-PRMS standards, with methodology documented and assumptions stated plainly. Uncertainty is quantified rather than buried. Our senior professionals are also available to walk lenders, auditors, or an investment committee through the conclusions directly when that helps move a decision forward.

What data do you need to get started?

Typically well logs, production history, completion records, and any available seismic. For detailed subsurface modeling we also request core data, pressure tests, and fluid analysis. We work with whatever exists and document the limitations where information is thin.

Contact Haas & Cobb

Haas & Cobb Petroleum Consultants operates from Dallas and serves operators, financial institutions, and legal counsel across the region. Contact our petroleum engineering and geological consulting team serving Tulsa to discuss your evaluation needs. Reach out today to schedule a consultation.