| Month | Data | Change | Unit |
|---|---|---|---|
| September, 1981 | 1.56 | 0 | USD/gallon |
| October, 1981 | 1.56 | 0 | USD/gallon |
| November, 1981 | 1.56 | 0 | USD/gallon |
| December, 1981 | 1.559 | -0.0010000000000001 | USD/gallon |
| January, 1982 | 1.556 | -0.0029999999999999 | USD/gallon |
| February, 1982 | 1.557 | + 0.00099999999999989 | USD/gallon |
| March, 1982 | 1.553 | -0.004 | USD/gallon |
| April, 1982 | 1.501 | -0.052 | USD/gallon |
| May, 1982 | 1.487 | -0.014 | USD/gallon |
| June, 1982 | 1.505 | + 0.018 | USD/gallon |
| July, 1982 | 1.525 | + 0.02 | USD/gallon |
| August, 1982 | 1.529 | + 0.004 | USD/gallon |
| September, 1982 | 1.527 | -0.002 | USD/gallon |
| October, 1982 | 1.527 | 0 | USD/gallon |
| November, 1982 | 1.534 | + 0.0070000000000001 | USD/gallon |
| December, 1982 | 1.521 | -0.013 | USD/gallon |
| January, 1983 | 1.513 | -0.008 | USD/gallon |
| February, 1983 | 1.513 | 0 | USD/gallon |
| March, 1983 | 1.416 | -0.097 | USD/gallon |
| April, 1983 | 1.439 | + 0.023 | USD/gallon |
| May, 1983 | 1.42 | -0.019 | USD/gallon |
| June, 1983 | 1.428 | + 0.008 | USD/gallon |
| July, 1983 | 1.446 | + 0.018 | USD/gallon |
| August, 1983 | 1.452 | + 0.006 | USD/gallon |
| September, 1983 | 1.458 | + 0.006 | USD/gallon |
| October, 1983 | 1.463 | + 0.0050000000000001 | USD/gallon |
| November, 1983 | 1.457 | -0.006 | USD/gallon |
| December, 1983 | 1.451 | -0.006 | USD/gallon |
| January, 1984 | 1.451 | 0 | USD/gallon |
| February, 1984 | 1.441 | -0.01 | USD/gallon |
| March, 1984 | 1.421 | -0.02 | USD/gallon |
| April, 1984 | 1.412 | -0.0090000000000001 | USD/gallon |
| May, 1984 | 1.405 | -0.0069999999999999 | USD/gallon |
| June, 1984 | 1.406 | + 0.00099999999999989 | USD/gallon |
| July, 1984 | 1.41 | + 0.004 | USD/gallon |
| August, 1984 | 1.41 | 0 | USD/gallon |
| September, 1984 | 1.42 | + 0.01 | USD/gallon |
| October, 1984 | 1.421 | + 0.0010000000000001 | USD/gallon |
| November, 1984 | 1.421 | 0 | USD/gallon |
| December, 1984 | 1.422 | + 0.00099999999999989 | USD/gallon |
| January, 1985 | 1.404 | -0.018 | USD/gallon |
| February, 1985 | 1.374 | -0.03 | USD/gallon |
| March, 1985 | 1.365 | -0.0090000000000001 | USD/gallon |
| April, 1985 | 1.366 | + 0.0010000000000001 | USD/gallon |
| May, 1985 | 1.388 | + 0.022 | USD/gallon |
| June, 1985 | 1.397 | + 0.0090000000000001 | USD/gallon |
| July, 1985 | 1.404 | + 0.0069999999999999 | USD/gallon |
| August, 1985 | 1.383 | -0.021 | USD/gallon |
| September, 1985 | 1.393 | + 0.01 | USD/gallon |
| February, 1986 | 1.31 | -0.083 | USD/gallon |
| March, 1986 | 1.289 | -0.021 | USD/gallon |
| April, 1986 | 1.17 | -0.119 | USD/gallon |
| May, 1986 | 1.134 | -0.036 | USD/gallon |
| June, 1986 | 1.11 | -0.024 | USD/gallon |
| July, 1986 | 1.106 | -0.004 | USD/gallon |
| August, 1986 | 1.115 | + 0.0089999999999999 | USD/gallon |
| September, 1986 | 1.112 | -0.0029999999999999 | USD/gallon |
| October, 1986 | 1.112 | 0 | USD/gallon |
| November, 1986 | 1.051 | -0.061 | USD/gallon |
| December, 1986 | 1.062 | + 0.011 | USD/gallon |
| June, 2021 | 3.7 | + 2.638 | USD/gallon |
| July, 2021 | 3.956 | + 0.256 | USD/gallon |
| Year | Year Open - Year Close | Year Min - Year Max | Year Average | Year Change |
|---|---|---|---|---|
| 2021 | 3.7 - 3.956 | 3.7 - 3.956 | 3.83 | + 0.26 |
| 1986 | 1.31 - 1.062 | 1.051 - 1.31 | 1.14 | -0.25 |
| 1985 | 1.404 - 1.393 | 1.365 - 1.404 | 1.39 | -0.01 |
| 1984 | 1.451 - 1.422 | 1.405 - 1.451 | 1.42 | -0.03 |
| 1983 | 1.513 - 1.451 | 1.416 - 1.513 | 1.45 | -0.06 |
| 1982 | 1.556 - 1.521 | 1.487 - 1.557 | 1.53 | -0.04 |
| 1981 | 1.56 - 1.559 | 1.559 - 1.56 | 1.56 | -0 |