Dezhou United Petroleum Technology Corp.( DUPT, stock code:301158) was founded in 1961 and it's a first-class integrated oil drilling and production tools manufacturer.

DUPT mainly manufactures Mud Motors, Wellhead Equipment( casing & tubing heads, X-trees, valves) , High-pressure Hoses, Breakout Units, Hydraulic Vibrators, Dump Irons(NMDCs, Drilling Stabilizers, Float Subs, Filter Subs, X-overs, etc).

DUPT has obtained API Spec-Q1, API-6A, API-16C, API-7K, API-7-1, API-7-2, API-5DP, API-5CT, DNV-9001, API-9001, HSE certificates.