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 People with a family history â Some autoimmune diseases run in families, such as lupus and multiple sclerosis. 2  It is also common for different types of autoimmune diseases to affect different members of a single family. 3  Inheriting certain genes can make it more likely to get an autoimmune disease.