Onyx Management LLC was founded as a Holding Company to promote and develop Business opportunities, primarily in the Energy Sector.

Through strategic acquisitions and joint ventures, capital investments on infrastructure and technology, OM has emerged as a viable option on:

  • Power generation, distribution and marketing

  • Natural Gas distribution and marketing
  • NGL's distribution and marketing

  • Water and Oil Waste treatment and disposal

  • CNG (Compressed Natural Gas)
  • LNG (Liquefied Natural Gas)
  • Minerals 

Maverick Terminals and PEMEX Ink South Texas Fuel Oil Storage Deal


San Antonio-based logistics company Howard Midstream Energy Partners (HEP) said on Thursday that its bulk liquid terminal subsidiary, Maverick Terminals LLC has entered into a services agreement with PMI, an affiliate of Petroleos Mexicanos (PEMEX), for the storage and handling of fuel oil from various inland  [...]

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