https://www.purvisenergyadvisors.com/home daily 1.0 2026-01-24 https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/fc250e45-14ea-4ed8-ac11-b4a19e397a51/230814_MNC_Dwayne-58.jpg Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/a59a31d3-fefb-4a55-a31b-92507902fd8e/team.jpg Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/e4b571bf-daff-42c4-9771-ff9011c6a217/comp.png Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.purvisenergyadvisors.com/about daily 0.75 2025-08-19 https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/c38ae1e8-3520-43cc-a006-5141fe6b27cf/team.jpg About - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/502024a8-75c2-4f5c-8fff-545b8b85bcaf/Purvis_Headshots-14.jpg About - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/339d81e7-7f55-459d-a9c8-e84dc4f7f2b7/Screenshot+2025-06-29+at+11.48.43%E2%80%AFPM.png About - Make it stand out Lucy Frish Administrative Advisor Lucy Frish is responsible for managing the internal office systems of Purvis Energy Advisors, working behind the scenes to ensure the team is provided with the resources they need to serve our clients effectively and efficiently. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/d7d8b444-54a4-42bb-8e99-47729dd2b80f/Screenshot+2025-06-29+at+11.50.07%E2%80%AFPM.png About - Make it stand out Mathew Sofield Technical Advisor Mathew Sofield sports a degree in experimental Physics, broad programming skills, and a by-line in Nature. He supports data gathering, reduction, and analysis for clients’ largest and most complex projects. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/49ad85e2-dfd8-43b2-9288-2d9ab50e4baa/Screenshot+2025-06-29+at+11.50.14%E2%80%AFPM.png About - Make it stand out Tiffany Flanagan Engineering Advisor Tiffany Flanagan has spent 15 years as a reservoir engineer at top firms, and now she brings that diligence and expertise to help clients plan reliable strategies based on deep understanding. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/d5f0725e-3119-4aee-92c5-be0e55c19db7/Screenshot+2025-06-29+at+11.50.21%E2%80%AFPM.png About - Make it stand out Rudy Sandoval Simulation Advisor Rudy Sandoval dedicated his career to building and deploying reservoir simulators and simulations. He uses his decades of experience and his own commercial software to bring rigorous, quantitative analysis to questions of reservoir performance for clients of Purvis Energy Advisors. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/b2b4f560-66cd-4df8-bc83-6f4d1fa7a0c5/Screenshot+2025-06-29+at+11.50.29%E2%80%AFPM.png About - Make it stand out Shameka Allen-Lane Event Advisor Shameka Allen-Lane handles webinars and conferences for Purvis Energy Advisors events,including CarbonExpo events, through her company Catalyst Event Coaching. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/fa7cf650-d02b-455c-933b-c01bc29e95bf/Screenshot+2025-06-29+at+11.48.37%E2%80%AFPM.png About - Make it stand out Amy Spaziani Principal of Spaziani GeoServices Allied Advisor in Geology Amy Spaziani has worked as a researcher, explorationist, and development geologist across several states and abroad, including much of her career in California. Today, she uses that knowledge to help Purvis Energy Advisor clients make practical, profitable business decisions based on the fundamental reality of the rock itself. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/dad5dda1-0a5d-4897-919e-e47d3739be95/Laura3297+-+web.jpg About - Make it stand out Laura Freeman Founder of Highpoint Global Capital Allied Advisor in Engineering and A&D Laura Freeman occupies a unique space at the intersection of engineering and business, including a top tier MBA. Laura helps PEA clients to understand the nuances of business decisions and financial reporting built on engineering analysis. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/4453a1b3-5e20-4095-a309-49398af68dff/TMW+Headshot.jpg About - Make it stand out Tom Walker Principal of Evans & Walker Allied Advisor in California Tom has long lived and worked as a registered professional engineer in California, trusted by governments, operators, investors and real estate developers alike. He brings an unparalleled depth of knowledge about the oil industry there. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/c1bebb89-cc6f-4d4d-962f-3ddeddc9b072/_DXT1303-Edit+2.jpg About - Make it stand out Lachlan Hughson Founder of 4D Resources Advisory Allied Advisor in M&A and Corporate Finance Using Probabilistic Analyses Lachlan has spent his entire career working with oil and gas companies globally as an investment banker and corporate executive. He helps PEA’s clients to make more informed decisions faster given the irreducible uncertainties of the business. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/553b5eec-cdf9-4d66-9578-e3ce2101c61b/Screenshot+2025-07-10+at+11.13.26%E2%80%AFAM.png About - Make it stand out Responsible Energy Solutions and its founder Roy Hartstein were pioneers of mitigating methane emissions and remain a leader in the certification of low-emissions gas production. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/8c23840f-94b8-4a53-9a71-7df6a220f302/Screenshot+2025-07-10+at+11.13.34%E2%80%AFAM.png About - Make it stand out 360 Engineering & Environmental Consulting is a leader in legacy oil and gas well decommissioning and environmental remediation in North America, with ongoing operations in California, New Mexico, Colorado, Utah and Ohio. https://www.purvisenergyadvisors.com/services daily 0.75 2026-01-22 https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/9dcb5b4d-2eee-4ece-8392-69f0bf4ff09d/230814_MNC_Dwayne-58.jpg Services - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/109c0cea-3a7c-48ff-bc92-60d6a026f5e0/Screenshot+2025-07-07+at+11.24.29%E2%80%AFAM.png Services - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.purvisenergyadvisors.com/resources daily 0.75 2026-04-03 https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1751599853707-8083FJ84DH7WMJ5T82TB/unsplash-image-sNwnjxm8eTY.jpg Resources - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/065f37e6-e2b4-4e27-89b2-046b05f2fbaa/Screenshot+2025-07-04+at+11.46.39%E2%80%AFAM.png Resources - Make it stand out A Proposal for “Holdback” Thirty-five years of declining production and accumulating plugging liabilities have created the need for a new economic yardstick and new planning considerations. This free white paper outlines the need and proposes a solution. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/c71d4d7a-aed0-4ec4-8a59-76ab15a33841/Screenshot+2025-07-04+at+11.46.47%E2%80%AFAM.png Resources - Make it stand out A Framework for Well Plugging The oil industry and the public we serve cannot conduct a meaningful discussion of asset retirement obligations if we can’t agree on the words to use to talk about them. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/45eafb57-445c-4c73-b434-09d4fdab7785/Screenshot+2025-07-04+at+11.46.57%E2%80%AFAM.png Resources - Make it stand out Barrels of Value, Not Energy This Working Paper proposes a consistent and comprehensive terminology to discuss retirement obligations, particularly for well plugging operations. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/6e078fd8-619c-488a-ab2a-57e7e6fed55e/Screenshot+2025-07-04+at+11.46.33%E2%80%AFAM.png Resources - Make it stand out Abandonment Costs: What PRMS and Other Standards Do and Don't Say In a recent webinar, our team explored the current industry standards and guidance around plugging and abandonment (P&A) cost modeling. Download the slides and materials used during the live webinar. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/ff39cf44-557f-4dd5-83f4-366edc9f91e4/Affirmative+Testimony+from+D.+Purvis+to+Oil+Conversion+Commission+%28OCC%29+%282%29.png Resources - Make it stand out Affirmative and Rebuttal Testimonies to the Oil Conservation Division of New Mexico Purvis Energy Advisors worked with the Environmental Defense Fund to analyze the situation in New Mexico and how proposed bonding rules would protect taxpayers and affect operators. Click to download Dwayne Purvis’s entire affirmative testimony to the OCD. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/f8a57106-a270-47ab-9976-0e77ce208490/Impending+Risk+of+Orphaning+graphic+%281%29.png Resources - Make it stand out Impending Risk of Orphaning: The number and status of onshore US oil and gas wells People cite a wide range of numbers of oil and gas wells in the U.S., from under 1 million to over 5 million. This white paper makes a first attempt to create a consistent and comprehensive accounting of the oil and gas wells drilled onshore U.S. and their status. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/9b72bb2b-4885-461a-9301-04c3edf4f2f8/Wasted+Gas+in+TX+pg+1.png Resources - Make it stand out From Rocky Mountain Institute and PEA – Drilling Down on Methane Loss Read the latest report on concerning levels of under-recorded methane waste in the state of Texas, co-authored by Rocky Mountain Institute and Purvis Energy Advisors’ Dwayne Purvis. https://www.purvisenergyadvisors.com/non-profit daily 0.75 2025-11-03 https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/d88c98d7-6ed3-46ad-9892-2a34495fba9a/230814_MNC_Dwayne-76.jpg Non-Profit - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/c59f2628-a0aa-4164-92b9-b61442b206b6/gas-863196.jpg Non-Profit - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/ae270a7c-b9d3-4b39-91a5-514e830c40c7/IMG_0791.JPG Non-Profit - Make it stand out An explanation of climate science and projection methodologies using language and analogies from the oil and gas industry that the audience can understand. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/8595a688-51c5-4c79-82a8-02c035a24a52/Screenshot+2025-07-04+at+12.37.20%E2%80%AFPM.png Non-Profit - Make it stand out The economic perils of paying for retirement of late life oil and gas assets, om unplugged wells. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/da7b436e-6caa-4536-9115-437037914a0a/gas-863196.jpg Non-Profit - Make it stand out Research into the industry of carbon capture and sequestration. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/711352cb-693d-42d6-a9e4-0a4347a3ab11/IMG_6561.png Non-Profit - Make it stand out Oil and gas emissions from venting, flaring, and failure of unplugged wells https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/6ae1de0b-4a77-4306-8c72-e65a0af6d60e/IMG_6477.JPG Non-Profit - Make it stand out Demand and price outlook for oil and gas including the outlook for peak oil and gas demand necessary to curtail emissions. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/33469cf8-1f52-4541-9f4b-6b50f3731b51/IMG_2836.png Non-Profit - Make it stand out Relative emissions among U.S. domestic producers and international suppliers. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1496d006-721c-4de2-b155-ea020f00a646/Screenshot+2025-07-04+at+12.43.18%E2%80%AFPM.png Non-Profit - Make it stand out Rob Schuwerk Director of Research, Polluter Pays Project Trained at Yale Law and having worked for a white shoe firm on securities issues, Rob has now spent a decade working for the environmental non-profit CarbonTracker at the intersection of corporate finance and the energy transition. Rob co-authored seminal reports on unfunded liabilities in the oil and gas industry. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/90bd328f-ca50-48f0-9fbd-e48a59c39a50/Screenshot+2025-07-04+at+12.43.30%E2%80%AFPM.png Non-Profit - Make it stand out Dr. David Cross Former Director of a Non-Profit Institute Dr. David Cross began as a researcher, professor, and department head at Texas Christian University. In the last 15 years, he co-founded and co-lead an institute to operationalize the unique research insights into better outcomes for children. https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/7845402e-017c-4cf2-bc6d-d4b366137599/Screenshot+2025-07-04+at+12.43.43%E2%80%AFPM.png Non-Profit - Make it stand out Dwayne Purvis, P.E. Founder of Purvis Energy Advisors & Megasequestration Center and Repository Dwayne spent nearly 30 years as a petroleum engineer, entrepreneur and executive before re-training in sustainable energy at Johns Hopkins University. He now enjoys analyzing the same kinds of difficult problems and using those insights to create strategies for the public good. https://www.purvisenergyadvisors.com/contact daily 0.75 2025-07-10 https://www.purvisenergyadvisors.com/clients daily 0.75 2025-07-21 https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1751434367446-9VFZNFQU8NFHHH1UDNX9/tmp4usrqfur.png Clients https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1751434368844-1BC5BZ7E76HCSGE6R3C3/tmp70jxvshs.png Clients https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1751434370233-YDSOEGLVZ39H97OLNEU5/tmpaa60b0by.png Clients https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1751441005585-13YQ8NR0IWASSCGU312L/tmp6_rc5l9v.jpg Clients https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1751434372824-ZECV2J5RZCFFV2NGSUG6/tmpvt7ivaeo.png Clients https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1751434368608-NYFVN5TO32DX93PG5RVL/tmp8jv239wi.png Clients https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1751434371505-IY2HGO58UC2P1B8OLUK8/tmpfw36x8yb.png Clients https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1751434371890-5V3EXO50SO89P6E91AF6/tmppkq46223.png Clients https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1751434370264-NZNTASSRE16MWNUDVYEZ/tmpfnafd8hc.png Clients https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/1753107969394-TMLHAYM3HOHQNBKCI2ZR/5da4291be2c0-edflogo.png Clients https://www.purvisenergyadvisors.com/projects daily 0.75 2025-09-24 https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/3622533e-eded-42f8-ad67-28d397fcb9f0/projects+shortened+v3.png Projects - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.purvisenergyadvisors.com/email-notification daily 0.75 2025-10-02 https://www.purvisenergyadvisors.com/privacy-policy daily 0.75 2025-07-10 https://www.purvisenergyadvisors.com/upcoming-workshops daily 0.75 2025-09-25 https://www.purvisenergyadvisors.com/impending-risks-landing-page daily 0.75 2026-03-03 https://images.squarespace-cdn.com/content/v1/6858c37fe27c32612ecb3d57/f8a57106-a270-47ab-9976-0e77ce208490/Impending+Risk+of+Orphaning+graphic+%281%29.png Landing Page: Impending Risk When trying to describe the scale of the risk of wells being orphaned to state authorities for final decommissioning with public fund, people often cite a range of numbers from under a million to over 5 million based on diverse meaning and sources. This paper undertakes a comprehensive and systematic review of documented and indicated wells drilled onshore in the U.S. to create a more clear and authoritative explanation of the number of wells and their status.