Management

Timothy M. Roberson

President

Mr. Roberson has 37 years of experience in all phases of the oil and gas exploration and production business with focal areas on company start-ups, management of exploratory prospect origination, and in drilling, completion and production operations management. Mr. Roberson is President, co-founder and co-owner of recently formed Texas Standard Oil LLC. Mr. Roberson through several start-up companies has been an operator and/or producer since 1987 in the Permian Basin, the East Texas Basin, the Texas Gulf Coast, South Louisiana and in the Federal OCS waters of the Gulf of Mexico.  Read more...

Mr. Roberson began his career with National Supply in 1980 after graduating from the University of Texas at Austin McCombs School of Business with a B.B.A. He returned to the University of Texas at Austin in 1981 and conducted post-graduate work in Geology and Business and began as a staff landman with Gulf Oil Company in Houston in 1982. Mr. Roberson co-founded Pecos Petroleum Company on October 1, 1987 and served as President of the company from its inception until its dissolution in 2001. Mr. Roberson was president, co-founder and co-owner of Texas Standard Oil Company, an offshore oil & gas production company formed in 2001 which acquired the Freeport McMoRan Oil & Gas Royalty Trust (was traded on NYSE). Texas Standard Oil Company was liquidated in 2010. Mr. Roberson subsequently acquired all of the outstanding shares. In 2007 Mr. Roberson co-founded and was co-owner and president of Trifecta Oil & Gas, an offshore Gulf of Mexico OCS prospect development company that was based on 3D seismic processing and seismic modeling. Trifecta made several discoveries in the Federal waters of the Gulf of Mexico. Mr. Roberson is the founder and owner of Texas Standard Oil & Gas, LP, Texas Standard Oil Operating Company and Roberson L.P.-1 which are Houston based, privately owned, independent oil and gas companies engaged in the exploration and production of oil and natural gas.

Mr. Roberson is a member of the American Association of Professional Landmen, the Houston Geological Society, the West Texas Geological Society, the New Mexico Oil & Gas Association, the Society of Petroleum Engineers: Permian Basin & Gulf Coast Sections, the Houston Producer’s Forum, ADAM-Houston Energy Network, the Houston Petroleum Club, and the First United Methodist Church in downtown Houston. He is an Eagle Scout, a former Assistant Scout Master and holds the God and Country and the Scouting Triple Crown awards. He and Idylette, his wife of 28 years have three boys who are all Eagle Scouts. 

Charles A. Sharman

Executive Vice President

Mr. Sharman is a practicing oil and gas lawyer and the founder and owner of TXS 498 Corp., a small independent oil and gas investment company participating in various oil and gas seismic/prospect generation programs with Tim Roberson, through his wholly owned companies (Roberson LP-1 and Texas Standard Oil & Gas, LP) and Scott Daniel through his wholly owned company (Seven D Oil & Gas, Inc.).   Read more...

Prior to his current activities, Mr. Sharman was part owner and Vice President, then President (as of February 1, 2008) of Texas Standard Oil Company, a privately owned, independent oil and gas non-operating company engaged in the exploration, development and production of oil and natural gas in Federal waters of the Gulf of Mexico as well as onshore Texas and Louisiana. Texas Standard Oil Company was formed as part of a publicly registered roll-up of the overriding royalty interests of the publicly traded Freeport-McMoRan Royalty Trust and the underlying working interests then owned by IMC Global, Inc. It was eventually liquidated in 2010.

In his private practice of law in the oil and gas transactional and energy finance sectors, Mr. Sharman has represented independents in the financing, on both debt and equity basis (including $300 million financing of a large domestic independent’s SPE, representing a large German commercial bank that was co-lead on the facility) of the acquisition and development of oil and gas assets primarily in Texas and Federal waters offshore Texas and Louisiana.

From 1996 to 1999, Mr. Sharman was Vice President, then President of Allied Natural Gas Corporation, a privately owned, independent oil and gas company engaged in the development and production of oil and natural gas in Federal waters of the Gulf of Mexico company, including operations (operated three platforms), financing (production payment lending coupled with gas marketing rights) and acquisitions (negative value/surety transactions).

Before 1995, Mr. Sharman worked solely as an attorney with various firms in Houston, Texas including Butler & Binion, Reynolds, Allen & Cook, Oaks, Hartline & Honey and Campbell, Zukowski, Bresenhan & Woods, practicing in the oil and gas transactional and energy finance area and in litigation support.

Mr. Sharman began his career in 1978 as an Assistant Attorney General of Texas under then Attorney General Mark White.

Mr. Sharman received his B.A., cum laude from Vanderbilt University in 1975 and his doctor of jurisprudence from the University of Texas at Austin School of Law in 1978. Mr. Sharman is a member of the New Mexico Oil & Gas Association

Edward J. Gibbon

Vice President, Reservoir Engineering

Mr. Gibbon has over 40 years of experience in reserve estimating, economic analyses, and reservoir engineering. Before joining Texas Standard Oil, Mr. Gibbon was Vice President of Tall City Exploration, a highly successful Permian Basin oil company backed by Denham Capital. Tall City made a major, successful extension of the Wolfcamp horizontal play in the Midland Basin with a 68 mile step out into northern Howard County, Texas. Read more...

Before joining Tall City he was Sr. VP at Ryder Scott Company, L.P., leading multi-disciplinary teams of experts and providing consulting and evaluation services for clients such as McMoRan Oil and Gas, Mariner Energy, Apache Corporation, Chevron USA, and many other public and private companies and investors. Following graduation from the Colorado School of Mines, Mr. Gibbon began his professional career with Tenneco Oil Company, followed by employment at Pogo Producing Company, North Central Oil Corporation, and Texas General Petroleum Corp. He founded and managed his own petroleum consulting firm, IDM Engineering, Inc., for more than 10 years before returning to the direct E&P side of the business with assignments at Tatham Offshore, Inc. and Harken Energy Corp. Mr. Gibbon is a licensed professional engineer in the states of Louisiana and Texas and is a member of the Society of Petroleum Engineers, the Society of Petrophysicists and Well Log Analysts, and the Society of Petroleum Evaluation Engineers, where he served as Houston Chapter Chairman and as a member of the national Board of Directors. Ed is also a member of Tau Beta Pi and Sigma Gamma Epsilon honorary societies and a life member of the National Eagle Scout Association.

Terrence “(Terry)” Gant

Vice President, Land

Mr. Gant graduated from Texas Christian University in 1980.   His 36 years of industry experience has all been in the Permian Basin, based in Midland, Texas working the Permian Basin of Texas and New Mexico. Read more...

He started in early 1981 with Texaco Inc. as a Landman.  In 1986, he went to work with Brazos Petroleum Company.  In 1988 he became an independent Landman doing contract land work for Fina Oil and Chemical Company, Terra Resources, Inc., Pacific Enterprises Oil Company, Anadarko Petroleum Corporation and Pogo Producing Company. In 1993, Pogo hired him as Senior Landman.  He was later promoted to Division Landman/Division Land Manager in 1997.  In November 2007, Pogo was acquired by Plains Exploration & Production Company, with Terry continuing his role as Division Land Manager until 2008. While at Pogo, he was directly involved in numerous large corporate and asset acquisitions ranging from $25MM to $750MM. From 2008 to 2013, Terry was Manager of Nearburg Producing Company’s Midland office. He managed a staff of Geologists, Engineers, Landmen, Operation Engineers and Regulatory personnel, in addition to working with upper management in the Dallas corporate office. Finally, before arriving at Texas Standard, Terry was the Land Manager for Endeavor Energy Resources, LP in Midland from 2013 to 2016 where he was directly involved in numerous asset divestitures that brought in a little over $1 billion. Endeavor has one of the largest leasehold positions in the Permian Basin. Terry is a member of the AAPL, PBLA and NMLA, and is a Certified Professional Landman.  Terry has served on past boards of the PBLA, and as Treasurer.

Lynn Charuk

Vice President, Geology

Lynn Charuk has over 36 years of petroleum geological experience in the Permian Basin with extensive experience in the unconventional Wolfcamp  and  Bone Spring plays of the Delaware and Midland Basins. During his career, he has generated many significant discoveries in both the Midland and the Delaware Basins, producing over 500 million dollars in revenue. He also has experience in acquisitions and divestitures of properties, while serving in senior management positions for several  operating companies. Read more...

As Co-founder and VP of Exploration with Atlantic Operating,  (backed by Natural Gas Partners) Atlantic  acquired over 40,000 acres in Reeves, Pecos, and Ward Counties. In 2010, Mr. Charuk was involved in drilling several of the first Wolfcamp and 3rd Bone horizontal wells in  the Southern Delaware Basin (Reeves County). Since leaving Atlantic Operating in 2013, he has concentrated on generating Bone Spring and Wolfcamp horizontal prospects in the northern Delaware Basin of southeastern New Mexico, where he has had several significant discoveries. Currently he has interests in projects with Concho, EOG, Marshall and Winston, BTA, SDX, Caza Petroleum, and  Mewbourne  Oil Company. Mr. Charuk is a Certified Petroleum Geologist with the American Association of Petroleum Geologists #6624 and graduated with a B.S in Geological Science from Pennsylvania State University, in 1979. 

David Blackketter

Vice President, Acquisitions & Divestitures

David Blackketter is an accomplished Permian Basin petroleum engineer with strong experience in reservoir engineering evaluation work on both conventional and unconventional New Mexico, Permian Basin oil and gas reservoirs.  He began his oil & gas career with Berry Petroleum Company (later acquired by Linn Energy) where he developed high-graded production type curves and Capital Forecasting tools. Read more...

He then joined SM Energy as a reservoir engineer operating assets in the Midland and Delaware Basins. David ended his time with SM Energy as the reservoir engineer for the Business Development team over the Delaware Basin. In addition to divesting SM’s SENM acreage, he evaluated numerous prospects in the basin and developed tools and processes and applied data analytics to streamline the delineation of prospective acreage. David is a member of SPE, WTGS, and ADAM Permian.  David graduated from the University of Texas in 2006 with a Bachelor of Science degree in Electrical Engineering and holds a Master of Engineering Degree in Petroleum Engineering from Texas A&M University. 

W. Dixon Millican Jr.

Geophysical Manager

Mr. Millican is a Top-Level geologist/seismic interpreter, skilled in the integration of seismic interpretation, subsurface geology, and reservoir rock properties with thirty-five years of experience in Texas, Louisiana, and the Gulf of Mexico with specialized experience in salt dome and sub-salt exploration/exploitation and interpretation. Mr. Millican has interpreted 3-D and 2-D seismic on SMT, Petrel, GeoQuest, Landmark, and Geographix workstations since the late 1980’s with special emphasis placed on working within a multi-discipline team. Read more...

Mr. Millican began his career with Exxon Company U.S.A. in 1979 in Lafayette, Louisiana as an associate geologist after graduating from Louisiana State University with a Bachelor of Science in Geology. While at Exxon he was trained in development drilling exploration on mature salt domes onshore and offshore.

Mr. Millican left Exxon in 1eft Exxon in 1982 and began work in Houston with Elf Exploration Inc. where he continued prospect development work in the Gulf of Mexico. While with Elf, Mr. Millican generated over two dozen prospects which led to discoveries in the Brazos, West Cameron, Matagorda Island, High Island areas of over 10 mmbo and 94 bcfg. Between 1996 and 2000, Mr. Millican worked offshore for Allied Natural Gas, an offshore operator in the Gulf of Mexico, and worked onshore for Roberson Oil Co.

In 2001 Mr. Millican began working with Devon Energy Co. in Houston where he performed numerous subsurface offshore geological and geophysical studies and developed deepwater prospects at Orion (MC 110) and Firebird (MC 661-705). Mr. Millican left Devon in 2010 and began with Texas Standard Oil Company. While with Texas Standard, Mr. Millican originated several prospects on the Texas and Louisiana Gulf Coast. Several of those prospects are located at Danbury Dome Field, Brazoria County, Texas. Mr. Millican left Texas Standard in 2012 and went to work with Cathexis Oil & Gas in Houston where he developed several prospects in South Louisiana. Mr. Millican returned to Texas Standard in 2015.

Mr. Millican holds a Bachelor of Science in Geology from Louisiana State University at Baton Rouge, LA, 1979. He is licensed with the Texas Board of Geologists License #6494 and has Co-authored “The Use of Immersive 3D Technology and coustic Impedance Inversion to Drive Real-time Geo-steering of a Horizontal Well”, AAPG Bulletin, Vol. 88, No. 13.

Mr. Millican belongs to the American Association of Petroleum Geologists and the Society of Exploration Geophysicists. He has geological training in NeuraSection, Petrel Geological Modeling (SCM), Basic Log Analysis (Exxon), Drilling and Evaluation (Exxon), Clastic Facies (Exxon), Reservoir Geology (Exxon), Sequence Stratigraphy (Energists), Dipmeter Analysis (Western Atlas), Exploration for Sandstone Reservoirs (OGCI).

He has geophysical training in Professional Level Rock Physics for Seismic Amplitude Interpretation (GTA), Sub-salt Depth Imaging (Seismic City), Inversion Workbench (Jason), SeisWorks Seismic Interpretation, Well Seismic Fusion, LogM (Landmark), Basic Petrel Seismic Interpretation (Schlumberger), Geoquest IESX Seismic Interpretation and is expert in the software applications: Geographix, SMT, SeisWorks, IESX, Petrel, MS Office, ArcView GIS Gulf of Mexico, SmartSection, Neurasection, HIS Power Tools, Petrosys, Devon Qualified Reserve Estimation, Pete Rose Risk Analysis, Exploration Management (OGCI).

Patricia A. (Pat) Johnson, CPA

Accounting Manager 

Ms. Johnson joined Texas Standard Oil Company in 2001. She has since been responsible for all aspects of General Ledger and Operations accounting for several Texas Standard Oil Company affiliated entities. In addition to her accounting duties she has handled all office administration tasks.  Read more...

Ms. Johnson graduated in 1984 from the University of Texas at Austin McCombs School of Business with a B.B.A. in Accounting. She began her career as a JIB analyst with Fina Oil & Chemical in Dallas followed by several years at ARCO Oil & Gas with duties ranging from Leasehold to Inventory Control. While working full-time she passed all four (4) parts of the Texas CPA exam at one sitting and earned an M.B.A. in Management at Amber University.

Ms. Johnson was then hired by First Reserve Oil & Gas where she performed General Ledger, Payroll, Audit Coordinator, Tax Support and Accounts Payable functions. After the sale of First Reserve’s asset portfolio, she worked at Enron Capital Resources to summarize Joint Interest activity and generate Financial Statements. For several months into her tenure at Enron, Ms. Johnson continued to work weekends finalizing the First Reserve operations and administrative functions.

Grover C. Ellisor III

Operations Engineer

Mr. Ellisor founded GCE Petroleum Consulting, L.L.C. (“GCE”) in 1986 and is the sole owner. GCE is a Petroleum Engineering Operations consulting firm engaged in the business of supporting oil and gas operators with professional and reliable project management services for conventional and unconventional drilling, workover and completion operations. Read more...

GCE has a diverse client base including but not limited to Conoco, Magnum Hunter Resources, Tri-C Resources, Hilcorp, Square Mile, New Standard Energy, Matador, South Bay Resources and Davis Operating Company.

From 2009 through February 2015, Mr. Ellisor through GCE, drilled and completed 51 horizontal Eagle Ford Shale wells in Lavaca, Gonzales and Atascosa Counties, Texas. The well depth ranged from 13,500’ to 19,500’ with most lateral lengths being 7,000’ to 7,500’. The initial production on these wells ranged from 1,200 to 2,700 BOPD. GCE also planned and supervised artificial lift when necessary including ESP and pumping unit installations.

Prior to founding GCE, Mr. Ellisor joined Outline Oil Corporation in Victoria, Texas in 1982 and was Operations Manager. He supervised all drilling, completion, and workover operations and prepared and planned all drilling, completion, and workover AFEs and procedures. He supervised and assisted production personnel with daily operations and surface installations and processed necessary RRC forms for drilling and production operations. While with He completed

After graduating in 1979 from Texas A&M University with a B.S. in Engineering, Mr. Ellisor began with Brown Oil Tools, Inc. (“Brown”) in Houston, Texas where he designed liner and packer completions for domestic wells from 5,000’ to 25,000’ in hostile environments including temperatures in excess of 400 degrees F, H2S, and CO2. He personally generated $2,600,000 sales revenue in 1981 and received the “Outstanding Service” award in 1982. While with Brown he completed training courses in Liner Hanging and Completion Methods, Packer Completions and Gravel Packing.

Mr. Ellisor is an MMS Certified Well Control Supervisor in Surface & Subsea Drilling, Workover, Completion and Well Servicing and has completed training courses from the Petroleum Training Institute in Victoria, Texas in Workover and Well Completions, Drilling Practices, and Open Hole Logging.

Mr. Ellisor is a member of the American Petroleum Institute where he was on the Board of Directors from 1984 to 1987, served as Chairman in 1986 and 1987 (Victoria Chapter) and was Advisor to the Chairman in 1988 and 1989. He is a member of the Society of Petroleum Engineers and an Eagle Scout.