Panel A: Summary statistics
|
Panel B: Unit root test results
|
Variables
|
Mean
|
Max.
|
Min.
|
S. Dev.
|
Skewness
|
Kurtosis
|
J.B. Stat.
|
Prob.
|
Obs.
|
ADF
|
PP
|
INF
|
0.788 |
68.37 |
0 |
3.5661 |
10.1898 |
128.8507 |
6293584 |
0 |
9293 |
-5.717*** |
-42.75a*** |
Gasoline
|
2.08 |
3.571 |
0.4118 |
0.6153 |
0.2427 |
2.2172 |
136.7 |
0 |
3866 |
-63.593*** |
63.592*** |
Heating Oil
|
2.174 |
4.106 |
0 |
0.6512 |
0.3118 |
2.3073 |
137.6 |
0 |
3803 |
-62.824*** |
-62.812*** |
Natural Gas
|
3.273 |
6.149 |
1.482 |
0.8819 |
0.3533 |
2.5995 |
81.5 |
0 |
2965 |
-58.732*** |
-58.765*** |
WTI
|
43.631 |
145.29 |
-37.63 |
28.7476 |
0.9224 |
2.7756 |
1337.3 |
0 |
9293 |
-72.308*** |
-98.193*** |