From the manual:
Oil Barons is a unique game for one to eight players which combines the advantages of board play with the speed and ease of a computer game. The computer does all of the bookkeeping, and running of the game. The players, freed from work, have the time to make decisions, develop strategies, and concentrate on winning.
Oil Barons recreates the oil business in game form, complete with exploration, drilling and production. Each player controls their own company starting out with a few million dollars of operating cash, and four potential drilling parcels. The objective of the game is to see which player can accumulate the largest fortune!