77275535
Sep 10, 2007
Jun 17, 2008
Active Trademark
chemical compositions, namely, additives for use in drilling and completions of oil and gas wells; chemical additives for use in the oil and gas industries, namely, completion fluids; drilling muds for use in oil well drilling; chemical compositions, namely, drilling fluids for use in drilling, completion and workover of subterranean oil and gas wells
Chemicals