DL Flange is included in the Approved Manufacturers List (AML) of top Oil & Gas and Petrochemical companies.

  • Alyeska Pipeline
  • Anadarko
  • Angola LNG
  • Atofina
  • Bantrel
  • Boardwalk Field Services
  • CB&I
  • Chesapeake Energy
  • Chevron Phillips Chemical
  • Chevron/Texaco
  • CITGO
  • CNRL
  • ConocoPhillips
  • Colonial Pipeline
  • Columbia Gas Transmission
  • CrossCountry Energy
  • DCP Midstream
  • Dominion
  • Dow Chemical
  • Duke Energy
  • El Paso Natural Gas
  • Enbridge
  • Energy Transfer
  • Enterprise Products
  • Exxon Mobil
  • Florida Gas
  • Gulf Crossing Pipeline
  • Gulf South Pipeline
  • Jack St. Malo Product
  • KBR
  • Kern River Project
  • Kerr-McGee
  • Kiewit
  • Kinder Morgan
  • Koch Pipeline
  • Marathon
  • Minnesota Pipeline
  • NASA
  • NCRA
  • Nicor
  • NiSource
  • Northern Natural Gas
  • Panhandle Energy
  • Pemex
  • Peoples Gas
  • Petrobras
  • Questar
  • Saipem
  • San Diego Gas & Electric
  • Seaway Pipeline
  • Sempra Utilities
  • Shell Australia
  • Shell TAMAP-PFF
  • Shell USA
  • Solutia
  • Southern California Gas
  • Southwest Gas
  • Spectra Energy (including Union Gas)
  • Sunoco
  • Syncrude
  • Tallgrass Pipeline
  • Technip
  • Tennessee Gas Pipeline
  • Tesoro
  • Texas Gas Transmission
  • Thai Refinery Company
  • Tosco
  • Total Petrochemicals
  • TransCanada
  • Turner Piping Systems
  • Union Gas
  • URS
  • Valero
  • Western Gas
  • Willbros
  • Williams Gas Pipeline
  • Wolseley Industrial Group
  • Xcel Energy