+44 (118) 3100 856


free website templates

Technical Team

James Follis
Drilling Manager

James Follis has served as Drilling Manager for GlobalAtlantic Petroleum since 2014. Mr. Follis is responsible for and oversees all drilling operations.
Mr. Follis has been in the oil and natural gas industry since 1989 and has served as Vice President of Operations for Longfellow Energy since 2007. Prior to joining Longfellow Energy, Mr. Follis served in several managerial operational roles for over 18 years with Riata Energy, Inc. and Lariat Services. He managed Riata’s operations in Texas, Oklahoma, Colorado, Utah, Wyoming and Kentucky and assumed the role of Vice President of Operations in 2000. In his career, he has drilled more than 475 wells.

Javier Gonzalez
Staff Operations Engineer

 Javier Gonzalez was appointed Operation Staff Engineer in June 2019. Mr. Gonzalez's primary responsibilities are to support the efficient and safe drilling operations of GlobalAtlantic Petroleum's assets. He has previously held the Operation Manager role in United Kingdom responsible for the safe and efficient operation and development of GlobalAtlantic Petroleum's assets in UK, Bulgaria, and the region as well as manage the local technical teams
Prior to joining GlobalAtlantic, Mr. Gonzalez served in several managerial and technical roles in Drilling, Completion, and Production Operations at Occidental Petroleum, Shell E&P, and Schlumberger. He has worked in the Permian Basin, South Texas, Venezuela, Mexico, Russia, and the Gulf of Mexico.
Mr. Gonzalez holds a B.Sc. in Petroleum Engineering from The University of Tulsa and a M.B.A. degree from the University of Houston. He is also an active member of the SPE.


Sherrie Peña Cawthon
Senior Geoscientist

Sherrie Peña Cawthon joined GlobalAtlantic Petroleum in 2014 as a Senior Geoscientist. Mrs. Cawthon’s responsibilities include exploration and development projects focused on the Molla region of Southeast Turkey.
Prior to joining GlobalAtlantic Petroleum, Mrs. Cawthon worked for Pioneer Natural Resources for 10 years. During that time, she worked various assets and her experience includes both Exploration and Development Geology with focus on a wide range of plays such as the Gulf of Mexico Shelf, Deepwater West Africa, Marble Falls Clastics and Barnett Shale in the Fort Worth Basin, as well as the Edwards and Eagle Ford trends in South Texas.
Mrs. Cawthon holds a M.Sc. of Geosciences degree and a Certification in Remote Sensing from The University of Texas at Dallas and a B.A. degree in Geology from Southern Methodist University. She is also a member of the AAPG.

Finance and Accounting

Erik Mitchell 
Eastern Europe Chief Financial Officer

Erik Ulker was appointed as Eastern Europe CFO for GlobalAtlantic Petroleum United Kingdom in 2016. His management responsibilities include area credit facilities, cash management, statutory accounting, tax, and auditing. Mr. Ulker initially joined TransAtlantic Petroleum in 2010 serving in different areas including management of marketing and trading unit.
Prior to joining TransAtlantic Petroleum, Mr. Ulker worked in different industries including Banking, FMCG, Retail and Energy Trading in multinational companies, Nestle and Fiba Group from 2008 to 2010, Citibank from 2004 to 2007. 
Mr. Ulker has a Bachelor’s degree in Political Sciences from Istanbul University and holds Advanced Level Certificate from Capital Market Board of Turkey.