The Carlyle Group : Carlyle/Riverstone Energy

Frontier Drilling ASA
Bergen , Norway

Carlyle/Riverstone Energy
Acquired: July 2001
Status: Exited

Frontier Drilling ASA is an oil field services company focused on consolidating the niche market of conventionally moored drillships. The company also participates in the deepwater drilling and production market.

InTank, Inc.
Laurel , MD U.S.

Carlyle/Riverstone Energy
Acquired: November 2001
Status: Exited

During the period of Carlyle's ownership, InTank, Inc.was a provider of in-service above ground storage-tank ("AST") inspections and cleanings.

Legend Natural Gas
Houston , TX U.S.

Carlyle/Riverstone Energy
Carlyle/Riverstone Energy II
Acquired: September 2001
Status: Exited

Legend Natural Gas, LP is a North American natural gas focused acquisition, development and exploitation company.

Seabulk Intl
Ft. Lauderdale , FL U.S.

Carlyle/Riverstone Energy
Acquired: September 2002
Status: Exited

Seabulk International, Inc. is a leading provider of marine support and transportation services. Seabulk is principally engaged in three main businesses: offshore energy support, marine transportation and towing.