<DOCUMENT>
<TYPE>EX-21
<SEQUENCE>11
<FILENAME>d22569exv21.txt
<DESCRIPTION>SUBSIDIARIES
<TEXT>
<PAGE>

                                                                      EXHIBIT 21

                                  Subsidiaries

PrimeEnergy Management Corporation, a New York corporation 100% owned by
Corporation

Prime Operating Company, a Texas corporation 100% owned by PrimeEnergy
Corporation

Eastern Oil Well Service Company, a West Virginia corporation 100% owned by
PrimeEnergy Corporation

Southwest Oilfield Construction Company, an Oklahoma corporation, 100% owned by
PrimeEnergy Corporation

E O W S Midland Company, a Texas corporation, 100% owned by PrimeEnergy
Corporation

F-W Oil Exploration L.L.C., a Delaware limited liability company 60% owned by
PrimeEnergy Corporation
</TEXT>
</DOCUMENT>
