GAS PRICE DECONTROL SUPPORTED
The Reagan Administration's ambitious plan to remove wellhead price controls on natural gas survived its first major challenge today when the Senate Energy Committee defeated a move to put members on record against decontrolling inexpensive ''old'' gas. Although the sense of the committee resolution offered by Howard M. Metzenbaum, an Ohio Democrat, was not binding, the 10-to-8 vote against it meant that the decontrol of old gas had the support of half the members. There were two abstentions: John Melcher of Montana and Spark M. Matsunaga of Hawaii, both Democrats. ''There is support out there for decontrolling natural gas,'' an Energy Department spokesman commented. ''We think it's a good first step.''