Engineering Excellence, Unmatched Experience

Meet Letha Lencioni – PE

Founder and Principal Consultant, Double L Engineering, LLC

Letha Lencioni is a seasoned petroleum engineer with over 40 years of hands-on experience in petroleum reservoir evaluation, analysis, and operations engineering. She brings a wealth of knowledge and expertise to her role at Double L Engineering, LLC, where she has been instrumental in providing top-tier consulting services to the oil and gas industry.

Professional Experience:

  • Major Oil Company (11 years): Letha’s career began with a major oil company, where she gained invaluable experience working in the Mid-Continent Rockies and Alaska.
  • Independent Firms (3 years): She further honed her skills with small to medium-sized independent firms in the Rockies.
  • Consulting Firms (30 years): For the past three decades, Letha has worked with various consulting firms, tackling a wide range of petroleum engineering tasks across the US and worldwide.
Education

Bachelor’s of Science in Petroleum Engineering from the University of Tulsa
Graduate study at Colorado School of Mines

Professional Registration

Registered Professional Engineer in Colorado and Wyoming

Professional Affiliations

Society of Petroleum Engineers (SPE)

Society of Petroleum Evaluation Engineers (SPEE)

  • Served as local chapter chairman and member of the national board of directors.
why choose Letha
  • 1

    Extensive Experience and Expertise

  • 2

    Proven Professional Track Record

  • 3

    Recognized Professional Credentials

  • 4

    Comprehensive Consulting Services

  • 5

    Client-Centric Approach

Her extensive experience covers:

  • Reserve evaluations and market value appraisals of oil and gas properties.

  • Securities exchange reporting.

  • Expert witness and litigation support.

  • Probabilistic resource estimates.

  • Petroleum economics.

  • Unconventional and conventional resources.

  • Reserve estimates and reservoir simulation for helium and carbon dioxide, both naturally occurring and in storage projects.

Publications and Contributions:

Letha has authored seven technical papers and presentations, sharing her extensive knowledge and insights with the broader engineering community. Her contributions have been well-received, adding significant value to the field of petroleum engineering.

Extensive Experience
With over 40 years in petroleum engineering, Letha offers unmatched expertise in reserve evaluations, market value appraisals, and reservoir simulation.
Proven Track Record
Letha has a history of delivering exceptional results, evidenced by her technical publications and leadership roles in professional organizations.
Comprehensive Services
From expert witness testimony to detailed reserve reporting, Letha provides personalized, high-quality consulting tailored to meet clients' specific needs.

Letha’s history.

Reputation and Client Trust

With a career spanning over four decades, Letha has built a reputation for delivering excellent and professional work products. Her clients trust her expertise, knowing that she understands their needs and consistently meets them with a high level of professionalism and precision.

1980 – 1991

(12 yrs)

Senior Reservoir Engineer

ARCO Oil and Gas / ARCO Alaska
Tulsa, Denver, Anchorage

  • Gained extensive hands-on experience in petroleum reservoir evaluation and operations engineering.

1992 – 1993

(8 mo)

Reservoir Engineering Manager

Grynberg Petroleum Company
Denver, Colorado, United States

  • Continued to develop expertise in reservoir engineering and appraisals.

1997 – 1998

(2 yrs)

Senior Reservoir Engineer

Enron Oil and Gas
Field development in Wyoming and Utah

1993-1996, 1999-2024

(31 yrs)

VP Petroleum Engineering

Gustavson Associates / WSP USA
Boulder, CO

  • Variety of domestic and international assignments with consulting company

2024 – Present

Consulting Engineer

Double L Engineering, LLC · Freelance
Thornton, Colorado, United States