Cimarex was formed in February 2002 as a wholly owned subsidiary of Tulsa-based Helmerich & Payne, Inc. On September 30, 2002, Cimarex was completely spun off to Helmerich and Payne shareholders and simultaneously merged with Denver-based Key Production Company, Inc.
A few others such as rheumatoid arthritis and autoimmune diseases of the thyroid gland are most commonly seen in older individuals. However, many of the autoimmune diseases such as lupus and multiple sclerosis are most common in women during the ages of twenty to forty.
Autoimmune diseases are disorders in which the bodyâs immune system attacks the bodyâs own cells and organs with proteins called autoantibodies; this process is called autoimmunity. Autoimmune hepatitis is a chronic disease of the liver.