Gas Price Report For June 17, 2019

This week’s average fuel prices for all regions are shown below, as gathered from www.eia.gov.

E.I.A. Gas Price Survey

06/03/19 06/10/19 06/17/19 week ago year ago
U.S. 2.807 2.732 2.670 values are down -0.062 values are down -0.209
East Coast (PADD1) 2.664 2.620 2.557 values are down -0.063 values are down -0.242
  New England (PADD1A) 2.777 2.719 2.668 values are down -0.051 values are down -0.232
  Central Atlantic (PADD1B) 2.837 2.778 2.738 values are down -0.040 values are down -0.200
  Lower Atlantic (PADD1C) 2.529 2.499 2.417 values are down -0.082 values are down -0.267
Midwest (PADD2) 2.746 2.620 2.541 values are down -0.079 values are down -0.250
Gulf Coast (PADD3) 2.424 2.362 2.336 values are down -0.026 values are down -0.318
Rocky Mountain (PADD4) 2.980 2.948 2.910 values are down -0.038 values are down -0.067
West Coast (PADD5) 3.596 3.521 3.452 values are down -0.069 values are up 0.018
  West Coast less California 3.313 3.252 3.182 values are down -0.070 values are down -0.056

E.I.A. Diesel Price Survey

06/03/19 06/10/19 06/17/19 week ago year ago
U.S. 3.136 3.105 3.070 values are down -0.035 values are down -0.174
East Coast (PADD1) 3.153 3.125 3.099 values are down -0.026 values are down -0.141
  New England (PADD1A) 3.219 3.185 3.153 values are down -0.032 values are down -0.137
  Central Atlantic (PADD1B) 3.344 3.308 3.282 values are down -0.026 values are down -0.115
  Lower Atlantic (PADD1C) 3.011 2.989 2.964 values are down -0.025 values are down -0.157
Midwest (PADD2) 3.026 3.002 2.957 values are down -0.045 values are down -0.216
Gulf Coast (PADD3) 2.875 2.843 2.820 values are down -0.023 values are down -0.196
Rocky Mountain (PADD4) 3.163 3.114 3.072 values are down -0.042 values are down -0.267
West Coast (PADD5) 3.760 3.715 3.666 values are down -0.049 values are down -0.087
  West Coast less California 3.320 3.282 3.238 values are down -0.044 values are down -0.235
  California 4.109 4.058 4.006 values are down -0.052 values are up 0.030

*PADD stands for Petroleum Administration for Defense Districts. Charts from the U.S. Energy Information Administration. https://www.eia.gov/petroleum/gasdiesel/

Gas Price Report For June 10, 2019

This week’s average fuel prices for all regions are shown below, as gathered from www.eia.gov.

E.I.A. Gas Price Survey

05/27/19 06/03/19 06/10/19 week ago year ago
U.S. 2.822 2.807 2.732 values are down -0.075 values are down -0.179
East Coast (PADD1) 2.696 2.664 2.620 values are down -0.044 values are down -0.220
  New England (PADD1A) 2.809 2.777 2.719 values are down -0.058 values are down -0.207
  Central Atlantic (PADD1B) 2.868 2.837 2.778 values are down -0.059 values are down -0.202
  Lower Atlantic (PADD1C) 2.563 2.529 2.499 values are down -0.030 values are down -0.230
Midwest (PADD2) 2.712 2.746 2.620 values are down -0.126 values are down -0.197
Gulf Coast (PADD3) 2.473 2.424 2.362 values are down -0.062 values are down -0.334
Rocky Mountain (PADD4) 2.979 2.980 2.948 values are down -0.032 values are down -0.042
West Coast (PADD5) 3.632 3.596 3.521 values are down -0.075 values are up 0.069
  West Coast less California 3.335 3.313 3.252 values are down -0.061 values are up 0.006

E.I.A. Diesel Price Survey

05/27/19 06/03/19 06/10/19 week ago year ago
U.S. 3.151 3.136 3.105 values are down -0.031 values are down -0.161
East Coast (PADD1) 3.164 3.153 3.125 values are down -0.028 values are down -0.139
  New England (PADD1A) 3.225 3.219 3.185 values are down -0.034 values are down -0.107
  Central Atlantic (PADD1B) 3.360 3.344 3.308 values are down -0.036 values are down -0.112
  Lower Atlantic (PADD1C) 3.020 3.011 2.989 values are down -0.022 values are down -0.159
Midwest (PADD2) 3.038 3.026 3.002 values are down -0.024 values are down -0.197
Gulf Coast (PADD3) 2.893 2.875 2.843 values are down -0.032 values are down -0.194
Rocky Mountain (PADD4) 3.181 3.163 3.114 values are down -0.049 values are down -0.230
West Coast (PADD5) 3.782 3.760 3.715 values are down -0.045 values are down -0.054
  West Coast less California 3.338 3.320 3.282 values are down -0.038 values are down -0.207
  California 4.134 4.109 4.058 values are down -0.051 values are up 0.068

*PADD stands for Petroleum Administration for Defense Districts. Charts from the U.S. Energy Information Administration. https://www.eia.gov/petroleum/gasdiesel/

Gas Price Report For June 3, 2019

This week’s average fuel prices for all regions are shown below, as gathered from www.eia.gov.

E.I.A. Gas Price Survey

05/20/19 05/27/19 06/03/19 week ago year ago
U.S. 2.852 2.822 2.807 values are down -0.015 values are down -0.133
East Coast (PADD1) 2.723 2.696 2.664 values are down -0.032 values are down -0.215
  New England (PADD1A) 2.829 2.809 2.777 values are down -0.032 values are down -0.196
  Central Atlantic (PADD1B) 2.893 2.868 2.837 values are down -0.031 values are down -0.163
  Lower Atlantic (PADD1C) 2.591 2.563 2.529 values are down -0.034 values are down -0.249
Midwest (PADD2) 2.742 2.712 2.746 values are up 0.034 values are down -0.101
Gulf Coast (PADD3) 2.517 2.473 2.424 values are down -0.049 values are down -0.301
Rocky Mountain (PADD4) 2.982 2.979 2.980 values are up 0.001 values are down -0.015
West Coast (PADD5) 3.667 3.632 3.596 values are down -0.036 values are up 0.136
  West Coast less California 3.345 3.335 3.313 values are down -0.022 values are up 0.063

E.I.A. Diesel Price Survey

05/20/19 05/27/19 06/03/19 week ago year ago
U.S. 3.163 3.151 3.136 values are down -0.015 values are down -0.149
East Coast (PADD1) 3.176 3.164 3.153 values are down -0.011 values are down -0.129
  New England (PADD1A) 3.238 3.225 3.219 values are down -0.006 values are down -0.083
  Central Atlantic (PADD1B) 3.375 3.360 3.344 values are down -0.016 values are down -0.098
  Lower Atlantic (PADD1C) 3.030 3.020 3.011 values are down -0.009 values are down -0.155
Midwest (PADD2) 3.049 3.038 3.026 values are down -0.012 values are down -0.198
Gulf Coast (PADD3) 2.907 2.893 2.875 values are down -0.018 values are down -0.180
Rocky Mountain (PADD4) 3.192 3.181 3.163 values are down -0.018 values are down -0.196
West Coast (PADD5) 3.794 3.782 3.760 values are down -0.022 values are down -0.024
  West Coast less California 3.352 3.338 3.320 values are down -0.018 values are down -0.188
  California 4.145 4.134 4.109 values are down -0.025 values are up 0.106

*PADD stands for Petroleum Administration for Defense Districts. Charts from the U.S. Energy Information Administration. https://www.eia.gov/petroleum/gasdiesel/

Gas Price Report For May 27, 2019

Editor’s Note: Memorial Day Holiday on May 27. Report released May 28, 2019.

This week’s average fuel prices for all regions are shown below, as gathered from www.eia.gov.

E.I.A. Gas Price Survey

05/13/19 05/20/19 05/27/19 week ago year ago
U.S. 2.866 2.852 2.822 values are down -0.030 values are down -0.140
East Coast (PADD1) 2.754 2.723 2.696 values are down -0.027 values are down -0.214
  New England (PADD1A) 2.839 2.829 2.809 values are down -0.020 values are down -0.171
  Central Atlantic (PADD1B) 2.912 2.893 2.868 values are down -0.025 values are down -0.159
  Lower Atlantic (PADD1C) 2.635 2.591 2.563 values are down -0.028 values are down -0.255
Midwest (PADD2) 2.738 2.742 2.712 values are down -0.030 values are down -0.169
Gulf Coast (PADD3) 2.518 2.517 2.473 values are down -0.044 values are down -0.248
Rocky Mountain (PADD4) 2.964 2.982 2.979 values are down -0.003 values are down -0.012
West Coast (PADD5) 3.690 3.667 3.632 values are down -0.035 values are up 0.169
  West Coast less California 3.356 3.345 3.335 values are down -0.010 values are up 0.087

E.I.A. Diesel Price Survey

05/13/19 05/20/19 05/27/19 week ago year ago
U.S. 3.160 3.163 3.151 values are down -0.012 values are down -0.137
East Coast (PADD1) 3.176 3.176 3.164 values are down -0.012 values are down -0.123
  New England (PADD1A) 3.238 3.238 3.225 values are down -0.013 values are down -0.082
  Central Atlantic (PADD1B) 3.365 3.375 3.360 values are down -0.015 values are down -0.083
  Lower Atlantic (PADD1C) 3.035 3.030 3.020 values are down -0.010 values are down -0.154
Midwest (PADD2) 3.046 3.049 3.038 values are down -0.011 values are down -0.192
Gulf Coast (PADD3) 2.905 2.907 2.893 values are down -0.014 values are down -0.161
Rocky Mountain (PADD4) 3.181 3.192 3.181 values are down -0.011 values are down -0.172
West Coast (PADD5) 3.790 3.794 3.782 values are down -0.012 values are down -0.002
  West Coast less California 3.355 3.352 3.338 values are down -0.014 values are down -0.176
  California 4.136 4.145 4.134 values are down -0.011 values are up 0.137

*PADD stands for Petroleum Administration for Defense Districts. Charts from the U.S. Energy Information Administration. https://www.eia.gov/petroleum/gasdiesel/

Gas Price Report For May 20, 2019

This week’s average fuel prices for all regions are shown below, as gathered from www.eia.gov.

E.I.A. Gas Price Survey

05/06/19 05/13/19 05/20/19 week ago year ago
U.S. 2.897 2.866 2.852 values are down -0.014 values are down -0.071
East Coast (PADD1) 2.792 2.754 2.723 values are down -0.031 values are down -0.137
  New England (PADD1A) 2.860 2.839 2.829 values are down -0.010 values are down -0.116
  Central Atlantic (PADD1B) 2.929 2.912 2.893 values are down -0.019 values are down -0.104
  Lower Atlantic (PADD1C) 2.690 2.635 2.591 values are down -0.044 values are down -0.160
Midwest (PADD2) 2.767 2.738 2.742 values are up 0.004 values are down -0.109
Gulf Coast (PADD3) 2.557 2.518 2.517 values are down -0.001 values are down -0.159
Rocky Mountain (PADD4) 2.919 2.964 2.982 values are up 0.018 values are up 0.014
West Coast (PADD5) 3.707 3.690 3.667 values are down -0.023 values are up 0.232
  West Coast less California 3.346 3.356 3.345 values are down -0.011 values are up 0.137

E.I.A. Diesel Price Survey

05/06/19 05/13/19 05/20/19 week ago year ago
U.S. 3.171 3.160 3.163 values are up 0.003 values are down -0.114
East Coast (PADD1) 3.190 3.176 3.176 no change 0.000 values are down -0.095
  New England (PADD1A) 3.245 3.238 3.238 no change 0.000 values are down -0.044
  Central Atlantic (PADD1B) 3.379 3.365 3.375 values are up 0.010 values are down -0.045
  Lower Atlantic (PADD1C) 3.051 3.035 3.030 values are down -0.005 values are down -0.133
Midwest (PADD2) 3.064 3.046 3.049 values are up 0.003 values are down -0.169
Gulf Coast (PADD3) 2.927 2.905 2.907 values are up 0.002 values are down -0.148
Rocky Mountain (PADD4) 3.186 3.181 3.192 values are up 0.011 values are down -0.156
West Coast (PADD5) 3.765 3.790 3.794 values are up 0.004 values are up 0.029
  West Coast less California 3.345 3.355 3.352 values are down -0.003 values are down -0.151
  California 4.097 4.136 4.145 values are up 0.009 values are up 0.172

*PADD stands for Petroleum Administration for Defense Districts. Charts from the U.S. Energy Information Administration. https://www.eia.gov/petroleum/gasdiesel/

Gas Price Report For May 13, 2019

This week’s average fuel prices for all regions are shown below, as gathered from www.eia.gov.

E.I.A. Gas Price Survey

04/29/19 05/06/19 05/13/19 week ago year ago
U.S. 2.887 2.897 2.866 values are down -0.031 values are down -0.007
East Coast (PADD1) 2.780 2.792 2.754 values are down -0.038 values are down -0.066
  New England (PADD1A) 2.824 2.860 2.839 values are down -0.021 values are down -0.035
  Central Atlantic (PADD1B) 2.932 2.929 2.912 values are down -0.017 values are down -0.032
  Lower Atlantic (PADD1C) 2.675 2.690 2.635 values are down -0.055 values are down -0.091
Midwest (PADD2) 2.765 2.767 2.738 values are down -0.029 values are down -0.044
Gulf Coast (PADD3) 2.582 2.557 2.518 values are down -0.039 values are down -0.095
Rocky Mountain (PADD4) 2.843 2.919 2.964 values are up 0.045 values are up 0.042
West Coast (PADD5) 3.671 3.707 3.690 values are down -0.017 values are up 0.285
  West Coast less California 3.295 3.346 3.356 values are up 0.010 values are up 0.190

E.I.A. Diesel Price Survey

04/29/19 05/06/19 05/13/19 week ago year ago
U.S. 3.169 3.171 3.160 values are down -0.011 values are down -0.079
East Coast (PADD1) 3.194 3.190 3.176 values are down -0.014 values are down -0.060
  New England (PADD1A) 3.236 3.245 3.238 values are down -0.007 values are down -0.013
  Central Atlantic (PADD1B) 3.385 3.379 3.365 values are down -0.014 values are down -0.015
  Lower Atlantic (PADD1C) 3.057 3.051 3.035 values are down -0.016 values are down -0.097
Midwest (PADD2) 3.058 3.064 3.046 values are down -0.018 values are down -0.129
Gulf Coast (PADD3) 2.939 2.927 2.905 values are down -0.022 values are down -0.107
Rocky Mountain (PADD4) 3.183 3.186 3.181 values are down -0.005 values are down -0.135
West Coast (PADD5) 3.730 3.765 3.790 values are up 0.025 values are up 0.059
  West Coast less California 3.346 3.345 3.355 values are up 0.010 values are down -0.127
  California 4.035 4.097 4.136 values are up 0.039 values are up 0.207

*PADD stands for Petroleum Administration for Defense Districts. Charts from the U.S. Energy Information Administration. https://www.eia.gov/petroleum/gasdiesel/

Gas Price Report For May 6, 2019

This week’s average fuel prices for all regions are shown below, as gathered from www.eia.gov.

E.I.A. Gas Price Survey

04/22/19 04/29/19 05/06/19 week ago year ago
U.S. 2.841 2.887 2.897 values are up 0.010 values are up 0.052
East Coast (PADD1) 2.733 2.780 2.792 values are up 0.012 no change 0.000
  New England (PADD1A) 2.737 2.824 2.860 values are up 0.036 values are up 0.024
  Central Atlantic (PADD1B) 2.857 2.932 2.929 values are down -0.003 values are up 0.012
  Lower Atlantic (PADD1C) 2.655 2.675 2.690 values are up 0.015 values are up 0.005
Midwest (PADD2) 2.722 2.765 2.767 values are up 0.002 values are up 0.070
Gulf Coast (PADD3) 2.535 2.582 2.557 values are down -0.025 values are down -0.032
Rocky Mountain (PADD4) 2.759 2.843 2.919 values are up 0.076 values are up 0.098
West Coast (PADD5) 3.629 3.671 3.707 values are up 0.036 values are up 0.243
  West Coast less California 3.243 3.295 3.346 values are up 0.051 values are up 0.173

E.I.A. Diesel Price Survey

04/22/19 04/29/19 05/06/19 week ago year ago
U.S. 3.147 3.169 3.171 values are up 0.002 no change 0.000
East Coast (PADD1) 3.174 3.194 3.190 values are down -0.004 values are up 0.012
  New England (PADD1A) 3.217 3.236 3.245 values are up 0.009 values are up 0.030
  Central Atlantic (PADD1B) 3.370 3.385 3.379 values are down -0.006 values are up 0.043
  Lower Atlantic (PADD1C) 3.033 3.057 3.051 values are down -0.006 values are down -0.010
Midwest (PADD2) 3.042 3.058 3.064 values are up 0.006 values are down -0.028
Gulf Coast (PADD3) 2.917 2.939 2.927 values are down -0.012 values are down -0.028
Rocky Mountain (PADD4) 3.143 3.183 3.186 values are up 0.003 values are down -0.063
West Coast (PADD5) 3.696 3.730 3.765 values are up 0.035 values are up 0.103
  West Coast less California 3.309 3.346 3.345 values are down -0.001 values are down -0.064
  California 4.003 4.035 4.097 values are up 0.062 values are up 0.234

*PADD stands for Petroleum Administration for Defense Districts. Charts from the U.S. Energy Information Administration. https://www.eia.gov/petroleum/gasdiesel/

Gas Price Report For April 29, 2019

This week’s average fuel prices for all regions are shown below, as gathered from www.eia.gov.

E.I.A. Gas Price Survey

04/15/19 04/22/19 04/29/19 week ago year ago
U.S. 2.828 2.841 2.887 values are up 0.046 values are up 0.041
East Coast (PADD1) 2.718 2.733 2.780 values are up 0.047 values are down -0.009
  New England (PADD1A) 2.648 2.737 2.824 values are up 0.087 values are up 0.012
  Central Atlantic (PADD1B) 2.816 2.857 2.932 values are up 0.075 values are up 0.022
  Lower Atlantic (PADD1C) 2.673 2.655 2.675 values are up 0.020 values are down -0.017
Midwest (PADD2) 2.736 2.722 2.765 values are up 0.043 values are up 0.041
Gulf Coast (PADD3) 2.536 2.535 2.582 values are up 0.047 values are down -0.007
Rocky Mountain (PADD4) 2.640 2.759 2.843 values are up 0.084 values are up 0.040
West Coast (PADD5) 3.579 3.629 3.671 values are up 0.042 values are up 0.239
  West Coast less California 3.163 3.243 3.295 values are up 0.052 values are up 0.167

E.I.A. Diesel Price Survey

04/15/19 04/22/19 04/29/19 week ago year ago
U.S. 3.118 3.147 3.169 values are up 0.022 values are up 0.012
East Coast (PADD1) 3.153 3.174 3.194 values are up 0.020 values are up 0.032
  New England (PADD1A) 3.205 3.217 3.236 values are up 0.019 values are up 0.033
  Central Atlantic (PADD1B) 3.342 3.370 3.385 values are up 0.015 values are up 0.064
  Lower Atlantic (PADD1C) 3.015 3.033 3.057 values are up 0.024 values are up 0.015
Midwest (PADD2) 3.010 3.042 3.058 values are up 0.016 values are down -0.025
Gulf Coast (PADD3) 2.899 2.917 2.939 values are up 0.022 values are down -0.007
Rocky Mountain (PADD4) 3.082 3.143 3.183 values are up 0.040 values are down -0.032
West Coast (PADD5) 3.651 3.696 3.730 values are up 0.034 values are up 0.090
  West Coast less California 3.252 3.309 3.346 values are up 0.037 values are down -0.048
  California 3.967 4.003 4.035 values are up 0.032 values are up 0.201

*PADD stands for Petroleum Administration for Defense Districts. Charts from the U.S. Energy Information Administration. https://www.eia.gov/petroleum/gasdiesel/

Gas Price Report For April 22, 2019

This week’s average fuel prices for all regions are shown below, as gathered from www.eia.gov.

E.I.A. Gas Price Survey

04/08/19 04/15/19 04/22/19 week ago year ago
U.S. 2.745 2.828 2.841 values are up 0.013 values are up 0.043
East Coast (PADD1) 2.653 2.718 2.733 values are up 0.015 values are down -0.018
  New England (PADD1A) 2.589 2.648 2.737 values are up 0.089 values are down -0.022
  Central Atlantic (PADD1B) 2.741 2.816 2.857 values are up 0.041 values are down -0.005
  Lower Atlantic (PADD1C) 2.613 2.673 2.655 values are down -0.018 values are down -0.010
Midwest (PADD2) 2.670 2.736 2.722 values are down -0.014 values are up 0.065
Gulf Coast (PADD3) 2.452 2.536 2.535 values are down -0.001 values are down -0.011
Rocky Mountain (PADD4) 2.539 2.640 2.759 values are up 0.119 values are down -0.013
West Coast (PADD5) 3.418 3.579 3.629 values are up 0.050 values are up 0.238
  West Coast less California 3.056 3.163 3.243 values are up 0.080 values are up 0.155

E.I.A. Diesel Price Survey

04/08/19 04/15/19 04/22/19 week ago year ago
U.S. 3.093 3.118 3.147 values are up 0.029 values are up 0.014
East Coast (PADD1) 3.137 3.153 3.174 values are up 0.021 values are up 0.032
  New England (PADD1A) 3.193 3.205 3.217 values are up 0.012 values are up 0.046
  Central Atlantic (PADD1B) 3.324 3.342 3.370 values are up 0.028 values are up 0.075
  Lower Atlantic (PADD1C) 2.998 3.015 3.033 values are up 0.018 values are up 0.005
Midwest (PADD2) 2.993 3.010 3.042 values are up 0.032 values are down -0.005
Gulf Coast (PADD3) 2.879 2.899 2.917 values are up 0.018 values are down -0.019
Rocky Mountain (PADD4) 3.028 3.082 3.143 values are up 0.061 values are down -0.038
West Coast (PADD5) 3.591 3.651 3.696 values are up 0.045 values are up 0.080
  West Coast less California 3.189 3.252 3.309 values are up 0.057 values are down -0.057
  California 3.910 3.967 4.003 values are up 0.036 values are up 0.188

*PADD stands for Petroleum Administration for Defense Districts. Charts from the U.S. Energy Information Administration. https://www.eia.gov/petroleum/gasdiesel/

Gas Price Report For April 15, 2019

This week’s average fuel prices for all regions are shown below, as gathered from www.eia.gov.

E.I.A. Gas Price Survey

04/01/19 04/08/19 04/15/19 week ago year ago
U.S. 2.691 2.745 2.828 values are up 0.083 values are up 0.081
East Coast (PADD1) 2.618 2.653 2.718 values are up 0.065 values are up 0.030
  New England (PADD1A) 2.565 2.589 2.648 values are up 0.059 values are down -0.043
  Central Atlantic (PADD1B) 2.688 2.741 2.816 values are up 0.075 values are up 0.021
  Lower Atlantic (PADD1C) 2.586 2.613 2.673 values are up 0.060 values are up 0.067
Midwest (PADD2) 2.626 2.670 2.736 values are up 0.066 values are up 0.134
Gulf Coast (PADD3) 2.447 2.452 2.536 values are up 0.084 values are up 0.040
Rocky Mountain (PADD4) 2.469 2.539 2.640 values are up 0.101 values are down -0.094
West Coast (PADD5) 3.265 3.418 3.579 values are up 0.161 values are up 0.212
  West Coast less California 2.934 3.056 3.163 values are up 0.107 values are up 0.116

E.I.A. Diesel Price Survey

04/01/19 04/08/19 04/15/19 week ago year ago
U.S. 3.078 3.093 3.118 values are up 0.025 values are up 0.014
East Coast (PADD1) 3.127 3.137 3.153 values are up 0.016 values are up 0.037
  New England (PADD1A) 3.196 3.193 3.205 values are up 0.012 values are up 0.056
  Central Atlantic (PADD1B) 3.309 3.324 3.342 values are up 0.018 values are up 0.067
  Lower Atlantic (PADD1C) 2.991 2.998 3.015 values are up 0.017 values are up 0.017
Midwest (PADD2) 2.984 2.993 3.010 values are up 0.017 values are down -0.006
Gulf Coast (PADD3) 2.872 2.879 2.899 values are up 0.020 values are down -0.011
Rocky Mountain (PADD4) 3.007 3.028 3.082 values are up 0.054 values are down -0.055
West Coast (PADD5) 3.541 3.591 3.651 values are up 0.060 values are up 0.068
  West Coast less California 3.153 3.189 3.252 values are up 0.063 values are down -0.074
  California 3.849 3.910 3.967 values are up 0.057 values are up 0.180

*PADD stands for Petroleum Administration for Defense Districts. Charts from the U.S. Energy Information Administration. https://www.eia.gov/petroleum/gasdiesel/