Department average of company-reported wellhead prices, all fields.

$ per barrel

Fiscal Year		Calendar Year
1977	;	1977	$6.30
1978	$5.69	1978	$5.11
1979	$6.35	1979	$10.35
1980	$14.41	1980	$16.83
1981	$21.13	1981	$23.28
1982	$20.87	1982	$19.72
1983	$18.70	1983	$17.52
1984	$17.58	1984	$17.70
1985	$17.30	1985	$16.80
1986	$12.31	1986	$6.31
1987	$7.53	1987	$10.82
1988	$10.36	1988	$8.49
1989	$9.59	1989	$11.91
1990	$11.54	1990	$15.21
1991	$15.65	1991	$11.77
1992	$11.44	1992	$12.07
1993	$12.54	1993	$10.97
1994	$9.38	1994	$9.76
1995	$11.04	1995	$11.16
1996	$12.77	1996	$15.85
1997	$16.28	1997	$14.68
1998	$11.23	1998	$8.42
1999	$8.88	1999	$13.70
2000	$19.87	2000	$23.44
2001	$22.56	2001	$18.50
2002	$17.04	2002	$19.60
2003	$23.42	2003	$24.60
2004	$27.46	2004	$34.04
2005	$40.12	2005	$48.42
2006	$56.69	2006	$61.06
2007	$56.20	2007	$66.27
2008	$90.46	2008	$89.75
2009	$61.86	2009	$55.48
2010		2010
2011		2011
2012		2012

Notes
1. The ANS, CY 2006 wellhead value is the monthly average for January 2006 to August 2006.

2. In FY 2008, the Department of Revenue made a change in the method by which it accounts for future revenues, as well as historical and future and oil prices, from a cash basis to an accrual basis. This method change will better align fiscal year revenues with the state’s financial reports and other production publications. As a result, slight modifications have been made to historical wellhead values to accommodate this change. This change was made to wellhead values on the tax division website on 6/30/2010.