Although manufacturing increased markedly in Wyoming from 1977 to 1991—value of shipments by manufacturers more than doubled from $1,287 million to $2,733 million—it remains insignificant by national standards. Total value added by manufacture in 1997 was $3 billion.

Earnings of persons employed in Wyoming increased from $7.6 billion in 1997 to $7.8 billion in 1998, an increase of 3.1%. The largest industries in 1998 were services, 18.9% of earnings; state and local government, 16.5%; and mining, 15.7%. Of the industries that accounted for at least 5% of earnings in 1998, the slowest growing from 1997 to 1998 was state and local government, which increased 2.3%; the fastest was mining, which increased 9.8%.