Average number of U.S. rotary drilling rigs in operation¹

	1997	1996	%
State or district	Avg.	Avg.	Diff.
Alabama-onshore	2.3	2.5	– 8.0
Alabama-offshore	1.6	2.6	– 38.5
Alaska-onshore	10.2	8.9	14.6
Alaska-offshore	1.0	0.5	100.0
Arkansas	10.1	8.5	18.8
California-onshore	28.6	23.6	21.2
California-offshore	3.2	3.9	– 17.9
Colorado	16.3	13.8	18.1
Kansas	19.3	23.6	– 18.2
Kentucky	4.8	3.4	41.2
Louisiana	193.6	156.1	24.0
North	20.8	18.8	10.6
Inland water	23.3	18.6	25.3
South	47.9	31.1	54.0
Offshore	101.8	87.8	15.9
Michigan	6.2	3.9	59.0
Mississippi	13.3	8.5	56.5
Montana	10.9	7.7	41.6
Nebraska	1.0	0.3	233.3
Nevada	0.3	0.9	– 66.7
New Mexico	52.8	34.7	52.2
New York	0.5	1.9	– 73.7
North Dakota	18.0	18.5	– 2.7
Ohio	9.0	7.9	13.9
Oklahoma	103.6	105.8	– 2.1
Pennsylvania	9.8	10.8	– 9.3
Texas	357.8	283.0	26.4
Offshore	14.8	13.8	7.2
Inland water	0.8	0.5	60.0
District 1	13.0	10.4	25.0
District 2	13.3	8.8	51.1
District 3	51.8	48.4	7.0
District 4	55.4	45.4	22.0
District 5	28.0	15.2	84.2
District 6	35.0	33.6	4.2
District 7B	5.2	2.7	92.6
District 7C	34.9	24.8	40.7
District 8	52.6	35.6	47.8
District 8A	22.0	21.5	2.3
District 9	7.2	6.6	9.1
District 10	24.8	17.4	42.5
Utah	13.8	9.1	51.6
Virginia	2.4	1.3	84.6
West Virginia	14.6	12.0	21.7
Wyoming	39.4	24.2	62.8
Others2	4.3	3.3	30.3
Total U.S.	943.0	778.7	21.1

¹ Source Hughes Christensen. Totals may not add due to rounding.
² Includes Florida, Georgia, Indiana, Maryland, Oregon, South Dakota, Tennessee and Washington.

A Special Report on the Oil Outlook from World Oil

Copyright © 1999 World Oil
Copyright © 1999 Gulf Publishing Company