Mr. Charles E. Drimal, Jr., has been the President of PrimeEnergy Management Corporation, a subsidiary of Primeenergy Corp. and the Managing General Partner of Sterling Gas Drilling Fund 1982, Sterling Drilling Fund 1983-1 and Sterling Drilling Fund 1983-2 since May 1983 and serves as its Chief Executive Officer. Mr. Drimal has been the President and Chief Executive Officer of PrimeEnergy Corp. since October 1987 and serves as its Chairman. He has been an Executive Director of PrimeEnergy Corp. since October 1987. He served as a Director of PrimeEnergy Management Corporation since May 1983. Mr. Drimal graduated from the University of Maryland in 1970 and Samford University School of Law in 1973 and is a Member of the New York State Bar.