Key Personnel

Michael Dolan

CEO, Petroleum Geologist (AAPG #6085)Phone: 303.531.2941

Michael Dolan is Founder and President of Dolan Integration Group (DIG). He is an AAPG Certified Petroleum Geologist specializing in organic geochemistry. He has 17 years of oil and gas industry experience as a successful oil and gas exploration geochemist at companies including Mobil, ExxonMobil and DIG. He holds a BSc in Geology from the University of Illinois at Chicago and an MSc in Geochemistry from the Colorado School of Mines. He is also a member of RMAG and SPE.

Toni Dolan

COO, FounderPhone: 303.531.2940

Toni Dolan, Founder and Chief Operating Officer of Dolan Integration Group, brings twenty years of experience in human resources, and environmental health and safety and business finance to DIG via Tilden & Nugent (Chicago), Westway Holdings (New Orleans) and Sandbak & Co. (Denver). Managing all non-technical business practices of DIG requires a vast bank of knowledge along with an entrepreneurial attitude.

Grant Zimbrick

Petroleum Geologist (AAPG #5311)Phone: 303.531.2942

Grant Zimbrick is a Petroleum Geologist for Dolan Integration Group. He is an AAPG Certified Petroleum Geologist with over 30 years as a Petroleum Geologist for Mobil, ExxonMobil and DIG. He holds a BSc in Geology from Oregon State University and an MS in Geology from the University of Oklahoma.

Michael J. Tischer, Ph.D.

Petroleum GeologistPhone303.531.2947

Mike Tischer is a Petroleum Geologist for Dolan Integration Group. Prior to joining the company, he spent six years at ExxonMobil in Houston working conventional and unconventional plays in various assignments in Exploration and Production. He holds an MA in Physics from SUNY Buffalo and a Ph.D. in Earth Sciences from Columbia University.

Patrick D. Travers

Geochemical Operations SupervisorPhone: 303.531.2951

Patrick Travers is a Geochemical Operations Supervisor with Dolan Integration Group. His diverse background and experience allows him to provide supervision of all internal and external operational activity at DIG.  Patrick received his BSc in Chemical and Biological Engineering from the University of Colorado at Boulder.

Josiah Strauss, Ph.D.

GeoscientistPhone: 303.531.2950

Josiah Strauss is a Geoscientist and Stable Isotope Geochemist with Dolan Integration Group. He has a BSc and MSc in geology from Florida Atlantic University, and a Ph.D. in geology from Texas A&M University. Josiah has also held postdoctoral positions at the University of New South Wales in Australia and Duke University.

Nicholas Rosenau, Ph.D.

GeoscientistPhone: 303.531.2955

Nicholas Rosenau is a Geoscientist and Stable Isotope Geochemist with Dolan Integration Group. He has Bachelors’ degrees in Chemistry (BA) and Earth Sciences (BS) from the University of Arkansas at Little Rock, and a Ph.D. in Geology from Southern Methodist University.

Allison Schaiberger

GeoscientistPhone: 303.531.2944

Allison Schaiberger is a Laboratory Technician and Geoscientist at Dolan Integration Group. She recently graduated from the University of Colorado with a BA in Geology. Allison’s focus on petroleum in her studies at CU Boulder has prepared her to critically examine geochemical data and aid in the operation of laboratory instruments.