环球能源网根据BP世界能源数据统计，在1981年至2005年的25年期间，石油消费呈逐年下降趋势，而天然气正替代石油在一次能源消费中的比例逐步提高，具体数据如下表所示。
全球一次能源消费结构
|
年份
|
合计消费（亿吨标准煤
|
煤炭比例
|
石油比例
|
天然气比例
|
水电比例
|
|
1981
|
92.40
|
27.85%
|
45.95%
|
20.21%
|
5.99%
|
|
1982
|
91.43
|
28.38%
|
44.81%
|
20.65%
|
6.17%
|
|
1983
|
90.88
|
29.05%
|
43.63%
|
20.86%
|
6.46%
|
|
1984
|
91.77
|
29.49%
|
42.94%
|
20.86%
|
6.70%
|
|
1985
|
95.76
|
29.66%
|
41.94%
|
21.77%
|
6.64%
|
|
1986
|
97.59
|
30.33%
|
41.01%
|
22.03%
|
6.64%
|
|
1987
|
99.73
|
30.29%
|
41.33%
|
21.80%
|
6.57%
|
|
1988
|
102.80
|
30.42%
|
40.89%
|
22.21%
|
6.49%
|
|
1989
|
106.22
|
30.24%
|
40.83%
|
22.50%
|
6.44%
|
|
1990
|
108.29
|
29.85%
|
40.72%
|
23.12%
|
6.31%
|
|
1991
|
109.53
|
29.13%
|
41.01%
|
23.39%
|
6.46%
|
|
1992
|
109.82
|
28.82%
|
40.82%
|
23.77%
|
6.60%
|
|
1993
|
110.27
|
28.48%
|
41.14%
|
23.80%
|
6.58%
|
|
1994
|
111.02
|
28.49%
|
40.55%
|
24.05%
|
6.92%
|
|
1995
|
112.14
|
28.38%
|
40.84%
|
23.90%
|
6.88%
|
|
1996
|
114.89
|
28.37%
|
40.44%
|
24.09%
|
7.09%
|
|
1997
|
118.56
|
28.35%
|
40.19%
|
24.48%
|
6.97%
|
|
1998
|
119.60
|
27.92%
|
40.86%
|
24.18%
|
7.03%
|
|
1999
|
119.65
|
27.26%
|
41.03%
|
24.58%
|
7.13%
|
|
2000
|
121.11
|
26.81%
|
41.28%
|
24.80%
|
7.10%
|
|
2001
|
124.29
|
27.14%
|
40.66%
|
25.19%
|
