Richard H. Dillon has been promoted to vice president of Santa Fe Engineering & Construction Company. He continues to be based at Houma, La., with responsibility for Santa Fe's marine construction activities in the Gulf of Mexico.

He worked for J. Ray McDermott from 1962 until 1971 when he joined Fluor Ocean Services. Two years later, Santa Fe International Corporation purchased a reel pipeline barge and other assets of Fluor Ocean Services, and Mr. Dillon was one of about 275 employees who joined Santa Fe at that time.

Since 1973 Mr. Dillon has worked as manager of marine construction for the Middle East, stationed in Bahrain, and as manager of estimating for Santa Fe Engineering & Construction at its Orange, Calif., headquarters. He was assigned to Houma as area manager for the Gulf of Mexico in 1979.