Client List

ASTAR provides daily OQ services to over 160 pipeline Operators, Contractors and Inspection Companies nationwide on an “as needed” basis.

Clients such as:


Boardwalk Pipeline Partners L.P.

Centurion Pipeline L.P.

Occidental Petroleum Corporation (Oxy)

Vitol Midstream

Meritage Midstream

TransCanada US

Williams Gas

Legacy Reserves

Sempra US Gas & Power

Empire Generating Co. LLC

Contractors/Inspection Companies

Denbow Company

H&T Utilities

Gulf Interstate Field Services (GIFS)

Quality Integrated Services, Inc. (QIS)

BlackEagle Energy Services

Henkels & McCoy

K.R. Swerdfeger Construction, Inc.

Shafer, Kline & Warren (SKW)


Saulsbury Industries



I was hired at Denbow Company as the Safety Manager, but was quickly tasked with managing our OQ program. I had no idea what an OQ program was or where to get started with our own program. I can’t thank Tracy, Jeremy, Sam, Rudy and the rest of ASTAR enough for walking me through, step by step, provider by provider, to make sure I understood the different tasks and requirements that are necessary to implement a successful OQ program…

Jared Malcolm – Safety & OQ Manager, Denbow Company, INC.

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We can provide your company with the
customized program that you want
and deserve. Schedule one of
our services today.

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115 East California Ave.
Suite 313
Oklahoma City, OK 73104

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