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.
1 Organ specific autoimmune diseases where the immune system targets specific cells, tissues or organs. 2  Generalized autoimmune diseases where the immune system may attack the bodyâs organs or tissues without discriminating among different types or target cells that are common to most organs, like connective tissue. Generalized autoimmune diseases where the immune system may attack the bodyâs organs or tissues without discriminating among different types or target cells that are common to most organs, like connective tissue.