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EXHIBIT 21.1
SUBSIDIARIES OF ENERGY CORPORATION OF AMERICA ON JUNE 30, 2000
NAME OF SUBSIDIARY STATE OF INCORPORATION
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Allegheny & Western Energy Corporation West Virginia
Eastern American Energy Corporation. . West Virginia
Eastern Capital Corporation. . . . . . West Virginia
Eastern Exploration Corporation. . . . West Virginia
Eastern Marketing Corporation. . . . . West Virginia
Eastern Pipeline Corporation . . . . . West Virginia
Eastern Systems Corporation. . . . . . West Virginia
Mapcom Systems, Inc. . . . . . . . . . Virginia
Mountaineer Gas Company. . . . . . . . West Virginia
Mountaineer Gas Services, Inc. . . . . West Virginia
Natural Gas Transportation Company . . West Virginia
Westech Australia, LLC . . . . . . . . Colorado
Westech Energy Corporation . . . . . . Colorado
Westech Energy New Zealand . . . . . . New Zealand
Westech Energy New Zealand, LLC. . . . Colorado
Westside Acquisition Corporation . . . Colorado
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