|Company Name Sort descending||Description||Membership Type|
|Haldor Topsoe, Inc.||Associate Member|
|HELM AG||Associate Member|
|HollyFrontier Corporation||Regular Member|
|Honeywell Inc.||Regular Member|
|Honeywell UOP||Regular Member|
|Houston Area Safety Council (HASC)||Associate Member|
|Houston Refining, LP||Regular Member|
|HPCL - Mittal Energy Ltd., (HMEL)||
HPCL is a GMMTPA refinery with integrated petrochemical complex.
|International Manufacturing Member|
|Hunt Refining Company||Regular Member|
|Huntsman Corporation||Regular Member|
Husky Energy is one of Canada's largest integrated energy companies. It is headquartered in Calgary, Alberta, and is publicly traded on the Toronto Stock Exchange under the symbols HSE, HSE.PR.A, HSE.PR.C, HSE.PR.E and HSE.PR.G. The Company operates worldwide with Upstream and Downstream business segments.