Annual Russell indexes reconstitution captures the 4,000 largest US stocks as of the end of May, ranking them by total market capitalization. Membership in the Russell 3000, which remains in place for one year, means automatic inclusion in the large-cap Russell 1000 Index or small-cap Russell 2000 Index, as well as the appropriate growth and value style indexes. FTSE Russell determines membership for its Russell indexes primarily by objective, market-capitalization rankings, and style attributes.
Erin Energy is an independent oil and gas exploration and production company focused on Sub-Saharan Africa. Its asset portfolio consists of nine licenses across four countries covering an area of 43,000 square kilometers (10 million acres), including current production and other exploration projects offshore Nigeria, as well as exploration licenses offshore Ghana, Kenya and Gambia, and onshore Kenya. Erin Energy is headquartered in Houston, Texas, and is listed on the New York and Johannesburg stock exchanges under "ERN."