David S. Mathis Email & Phone Number

I have run WBM, Saturated Salt, CutBrine, OBM/Diesel, OBM/Synthetic on horizontal wells in following formations- Haynesville/Louisiana, Marcellus/Pennsylvania, Fayetteville/ Arkansas, Woodbine/East Texas, Bone Spring/New Mexico, Eagle Ford/South Texas and Wolf Camp/West Texas.Partial List Of Operators I Have Run Drilling Fluid For: Amerada-Hess, Amoco, BP, Chevron, Dewbre Petroleum, El Paso Natural Gas, EOG Resources, Exxon, Forest Oil, Getty Oil, Louisiana Land & Exploration, Marathon, Mark Producing, Mitchell Energy, McMoRan, Mobil, Natomas, Oxy Permian, Plains Exploration, Shell Oil, SM Energy, Sohio, Southwestern Energy, Superior Oil, Talisman Energy, Zapata Exploration, Zaza EnergyAs an employee of SWACO in 1974, I worked on the GHK Co.1-27 Bertha Rogers well in Washita County, Oklahoma. Drilled to 31,441 feet, it is the deepest well ever drilled in the United States. Shorebases I Have Worked Offshore Out Of: Ingleside, Rockport, Port O'Connor, Freeport, Galveston, Sabine Pass, Intracoastal City, Fourchon, Grand Isle, VeniceStates I Have Run Drilling Fluid In: Arkansas, Colorado, Louisiana, New Mexico, Pennsylvania, Texas, Utah, WyomingCompletion Fluids I Have Formulated And Mixed: Sodium Chloride, Calcium Chloride, Calcium Bromide, Zinc BromideFederal Offshore Areas I Have Run Drilling Fluids In: East Breaks, Mustang Island, Brazos, Galveston, High Island, West Cameron, East Cameron, Vermillion, Eugene Island, Grand Isle, West DeltaSeminars I Have Completed: Winter Survival/Farmington, NM/1978, Offshore Survival/Baytown, TX/1980, Sales/Dresser Center/1981, Corrosion Control/Dresser Center/1984, Advanced OBM/Dresser Center/1988, Hydrogen Sulfide/South Texas/2012

Partial List Of Clients I Called On: BASF, Camp Dresser & McKee, Chevron, Devon Energy, DOE- Spallation Neutron Source Facility, Dow Chemical, Duke Solutions, DuPont, El Paso Production, EOG Resources, Exxon Mobil, Fluor Daniel, GE Energy, Johnson Controls, MD Anderson, NASA- Kennedy Space Center, NASA- Marshall Space Flight Center, National Oilwell Varco, Oak Ridge National Laboratory, Plains Marketing, Redstone Arsenal, Reliant Energy, Rice University, Tennessee Valley Authority, USDA- National Peanut Research Laboratory, Valero