Geology Expert Witnesses

Center , Pennsylvania

Geology, Environmental - Groundwater, Hydrogeology, Geology, Geo-Hazards, Mining, Stormwater, Oil & Gas, Bedrock Aquifer, Groundwater Contamination, Environmental Forensics, Environmental Evaluation, Environment, Water Resources, Water Supply, Karst, Karst Geology, Karst Hydrogeology, Sinkholes

Expertise in hydrogeology, geology and environmental forensics with a specialization in groundwater flow and contaminant transport in fractured bedrock aquifers. Mr. Gillespie's technical expertise is complemented by an industry insider’s savvy of corporate needs and operations and the regulatory acumen of a former agency reviewer and bureau official. He is a published researcher in hydrostructural geology and karst hydrogeology, an adjunct university professor of geology and a frequent provider of continuing professional education courses. Mr. Gillespie is routinely invited to speak on matters of earth, environment and energy to government committees, national business organizations and educational institutions. He developed and leads a geoResource Risk Reduction practice, specializing in strategic representation in regulatory and legal venues. Mr. Gillespie has provided litigation support, testifying expert services, expert regulatory negotiation support and public representa...

Houston, Texas

Oil and Gas, Economics - Valuation of petroleum assets, international oil and gas, petroleum contracts and agreements, petroleum sector taxation, petroleum engineering, energy economics, geology, arbitration and litigation, petroleum industry standards and practices, industry expert, drilling, exploration and production

Mr. Cline has acted in the capacity of expert witness particularly with respect to valuation of petroleum properties and/or petroleum industry practices in numerous arbitration, mediation and litigation proceedings including: ExxonMobil vs. Venezuela (ICSID); ExxonMobil vs. Petróleos de Venezuela (ICC); Anadarko Petroleum/Maersk vs. Sonatrach (UNCITRAL); Maersk vs. Algeria (ICSID); Sonatrach vs. Duke (UNCITRAL); Texaco vs. Apache (AAA); Vanco vs. Ukraine (Stockholm Chamber of Commerce); Occidental vs. Ecuador (mediation); CNOOC vs. Talisman (mediation); a series of arbitrations related to Egypt’s natural gas sector (ICC, ICSID, UNCITRAL and CRCICA); Midland Resources vs. Shtaif et al. (Ontario Superior Court); Total/ExxonMobil/Chevron/Nexen vs. NNPC (Nigerian arbitration); Repsol vs. Chevron (Spanish litigation); Niko vs. Bangladesh (ICSID and Bangladesh litigation); First National Petroleum vs. TNG (Stockholm Chamber of Commerce); Nexen/Occidental et al. vs. Yemen and multiple case...

Ritzville, Washington

Geotechnical Engineering, Civil Engineering - trenchless, drilling, tunnel, tunneling, pipeline, HDD, microtunnel, auger, boring, pipe, ramming, sinkhole, geology, construction, DSC, differing, horizontal, directional

I am a nationally recognized Geotechnical Engineer and Trenchless Expert. I have been involved with litigation matters involving construction issues related to pipeline installations using trenchless technologies. Qualifications and Accreditation M.S., Geological Engineering, University of Alaska, Fairbanks, 1996 B.S., Geological Sciences, University of Washington, 1994 California: Professional Engineer (Civil), Cert. No. C74224 Washington: Professional Engineer (Civil), Lic. No. 37412 Alaska: Professional Engineer (Civil), Lic. No. AELC11636 Texas: Professional Engineer (Civil), Lic. No. 160143 Memberships and Professional Organizations American Society of Civil Engineer (ASCE) • Executive Committee, Pipeline Division, Board member, 10/2024 to present • Manual of Practice (MOP) for Introduction to Trenchless Technologies (new MOP), Committee chair, 9/2024 to present • MOP for Horizontal Directional Drilling (MOP 108) committee member, 2021 to present • MOP for the Direct Steera...