Sales (£ million)
Year	Oil	NGLs	Gas	Other(1)	Total Income
1993	8,109	523	3,568	699	12,899
1994	8,964	528	3,836	974	14,302
1995	9,881	614	4,141	1,166	15,802
1996	11,849	748	5,295	1,243	19,135
1997	10,327	700	5,254	1,279	17,560
1998	7,487	551	5,313	1,453	14,805
1999	10,257	727	5,031	1,436	17,450
2000	16,275	1,117	6,606	1,488	25,486
2001	13,646	963	8,140	1,435	24,185
2002	13,629	894	8,199	1,397	24,118
2003p	13,365	1,105	7,554	1,538	23,562
Expenses (£ million)
Year	Operating costs	Other(2)		Total Expenses	Gross Operating Surplus (£million)
1993	3,661	47		3,708	9,191
1994	3,860	40		3,900	10,401
1995	3,913	37		3,950	11,852
1996	3,978	31		4,009	15,127
1997	4,150	34		4,184	13,377
1998	4,190	111		4,301	10,503
1999	4,249	282		4,531	12,919
2000	4,360	106		4,466	21,020
2001	4,347	49		4,396	19,789
2002	4,596	48		4,643	19,475
2003p	4,496	8		4,504	19,058

Notes:

(1) Revenues from pipelines and terminals, and other revenues of operators and production licensees.

(2) Other costs of operators and production licensees not attributable to oil or gas fields.

The figures exclude change in stocks and book value of stocks

p Provisional

Gross Operating Surplus is given as Total income less Total Expenses.

Capital Investment (£ million)
Year	E&A(3)	of which seismic	Oil & Gas Fields	Non-field (4)	Total Other than E&A	Total
1993	1,213		4,571	90	4,661	5,874
1994	939	160	3,620	51	3,671	4,610
1995	1,085	204	4,309	47	4,356	5,441
1996	1,097	190	4,326	38	4,364	5,461
1997	1,194	181	4,229	35	4,263	5,457
1998	762	128	5,053	-58	4,996	5,757
1999	457	55	3,103	-40	3,063	3,520
2000	348	40	2,783	-33	2,750	3,098
2001	420	33	3,543	27	3,570	3,990
2002	389	45	3,637	-39	3,598	3,988
2003p	334	42	3,449	-37	3,412	3,746

Notes: 

(3) E&A costs include exploration, and the cost of appraisal wells drilled prior to development approval.

(4) Other capital investment of operators and production licensees not classified to fields.

Operating expenditure by Operators and other Production Licensees (£ million)

Year	Total	Tariffs	Other	Maintenance Platform & equipment	Field	Wages & salaries	Insurance	Transport	Platform Hire	Miscell.
1993	3,661			492	234	403	270	349	36	1,879
1994	3,860			592	233	406	260	496	10	1,863
1995	3,913			517	290	393	226	559	4	1,925
1996	3,978			476	287	382	176	368	0	2,291
1997	4,152			536	321	358	135	311	48	2,445
1998	4,190	1,189	3,001
1999	4,249	1,293	2,956
2000	4,360	1,365	2,995
2001	4,347	1,528	2,819
2002	4,595	1,371	3,224
2003	4,496	1,549	2,947