APERGY (DELAWARE) FORMATION, INC.

metal treatment services, namely, a shot-peening process to extend fatigue life and enhance corrosion tolerance of sucker rods

"ROD PIN LUBRICANT"

Non-metal rod centralizing guide for use in subterranean oil and gas wells, whereby the guide attaches to a cylindrical rod before the rod is placed within a well bore and prevents the rod from moving sideways or wobbling within the well bore

electronic measuring, reference and calibration apparatus and instruments for use in sensing and measuring density, flow, pressure, [ force, torque, weight,] * and * temperature, [ and inertial parameters including acceleration and angular rate, ] and parts thereof

electronic measuring, reference and calibration apparatus and instruments for use in sensing and measuring [ density, flow, ] pressure, [ force, torque, weight, ] temperature, [ and inertial parameters including acceleration and angular rate, ] and parts thereof

WELL PUMPING EQUIPMENT, NAMELY, SUCKER RODS, PONY RODS AND SUCKER ROD COUPLINGS

Class 007: WEIGHTED SINKER BARS FOR OIL WELL PUMPS

VALVES FOR LOW PRESSURE FLUID CONDUCTORS