Winter Heat Fuels: Cost vs Efficiency

The cheapest heating fuel doesn't always save you more money.
Pricing and consumption data from EIA 2020 Residential Energy Consumption Survey (RECS)

Table with 18 columns and 53 rows.
StatesElectricity
% homes using as primary heat source.cost per mmBTUAverage home electric heating used in MMBtuAverage annual electric cost for heat.% homes using as primary heat source.cost per mmBTUAverage home natural gas heating used in MMBtuAverage annual natural gas cost for heat.% homes using as primary heat source.cost per mmBTUAverage home propane heating used in MMBtuAverage annual propane cost for heat.% homes using as primary heat source.cost per mmBTUAverage home heating oil heating used in MMBtu.Average annual heating oil cost for heat.
Alabama 64%$37.14 9.8$364.00 28%$15.80 28.6$452.00 5%$23.36 14.3$334.00 000
Alaska 13%$57.35 8.3$476.00 57%$11.81 94.5$1,116.00 Q0024%$19.03 83.1$1,581.00
Arizona 51%$38.41 4.4$169.00 36%$15.40 16.1$248.00 2%$27.14 14$380.00 Q00
Arkansas 46%$32.19 12.8$412.00 43%$12.75 44.3$565.00 4%$21.70 18.2$395.00 000
California 20%$51.43 2.1$108.00 64%$15.17 17.6$267.00 2%$30.45 24.4$743.00 000
Colorado 16%$33.62 5.8$195.00 76%$6.84 52.6$360.00 4%$16.25 55.5$902.00 000
Connecticut 19%$63.77 6.9$440.00 36%$14.51 48.8$708.00 4%$22.62 30.2$683.00 39%$16.37 70.8$1,159.00
Delaware 40%$34.24 9.9$339.00 41%$13.37 40.6$543.00 9%$26.57 21.3$566.00 8%$20.77 49.1$1,020.00
District of Columbia 41%$34.00 4.5$153.00 56%$13.11 28.9$379.00 000Q00
Florida 66%$34.04 5.2$177.00 5%$22.59 8.5$192.00 Q00000
Georgia 46%$37.63 7.6$286.00 47%$15.73 37$582.00 5%$24.55 17.8$437.00 Q00
Hawaii 5%$79.29 1.4$111.00 Q$0.00 00Q00000
Idaho 26%$28.82 11.9$343.00 61%$6.97 51.1$356.00 6%$18.54 51.2$949.00 Q00
Illinois 17%$36.17 8.1$293.00 78%$8.37 66.3$555.00 4%$16.18 69.9$1,131.00 000
Indiana 26%$36.17 14.9$539.00 65%$9.12 59.3$541.00 7%$17.49 50.1$876.00 Q00
Iowa 16%$33.08 11.7$387.00 71%$7.15 56.8$406.00 13%$12.80 71.7$918.00 Q00
Kansas 21%$35.51 9.8$348.00 71%$9.74 50.9$496.00 6%$13.61 40.7$554.00 000
Kentucky 49%$32.32 14.2$459.00 43%$11.35 43$488.00 4%$20.41 19.3$394.00 Q00
Louisiana 62%$29.26 6.8$199.00 33%$11.97 20.8$249.00 Q00000
Maine 10%$45.80 5$229.00 17%$14.12 49.3$696.00 16%$26.69 32.9$878.00 49%$15.83 61.1$967.00
Maryland 41%$35.23 11.1$391.00 49%$12.90 43.8$565.00 Q007%$20.98 51.9$1,089.00
Massachusetts 17%$57.74 6.2$358.00 53%$14.31 48.9$700.00 3%$28.40 35.7$1,014.00 24%$16.97 68.3$1,159.00
Michigan 10%$50.15 6.8$341.00 77%$8.02 72.7$583.00 9%$16.42 67.6$1,110.00 Q$18.38 56.8$1,044.00
Minnesota 14%$34.90 10.4$363.00 68%$7.74 64.1$496.00 15%$13.80 56.3$777.00 Q0$0.00
Mississippi 56%$32.04 10.3$330.00 32%$11.08 34.2$379.00 10%$26.36 20.6$543.00 Q0$0.00
Missouri 31%$32.21 12.2$393.00 59%$10.19 56.7$578.00 7%$14.10 32.4$457.00 00$0.00
Montana 24%$30.77 13$400.00 59%$6.86 60.5$415.00 9%$15.50 43.3$671.00 Q0$0.00
Nebraska 24%$30.80 12.5$385.00 69%$8.05 51.4$414.00 Q$13.46 39.9$537.00 00$0.00
Nevada 23%$31.96 4.6$147.00 68%$11.00 25.1$276.00 Q$23.02 34.1$785.00 00$0.00
New Hampshire 9%$48.05 4.1$197.00 28%$14.39 44$633.00 15%$24.34 44.7$1,088.00 40%$17.57 71.6$1,258.00
New Jersey 16%$46.67 5.1$238.00 75%$8.65 60.6$524.00 Q007%$18.46 51.9$958.00
New Mexico 13%$36.32 5.7$207.00 76%$7.91 38.7$306.00 Q$23.46 37.6$882.00 00$0.00
New York 16%$44.14 5.8$256.00 61%$14.61 46.2$675.00 4%$23.50 53.1$1,248.00 17%$18.82 54.4$1,024.00
North Carolina 62%$33.16 9.8$325.00 29%$12.89 35.7$460.00 4%$23.51 20.8$489.00 Q$19.74 30.6$604.00
North Dakota 34%$27.62 18.1$500.00 46%$6.02 69.1$416.00 15%$13.50 65.4$883.00 4%$16.04 65.4$1,049.00
Ohio 23%$33.50 11.7$392.00 64%$9.55 62.3$595.00 7%$20.28 49.7$1,008.00 Q$17.74 63.2$1,121.00
Oklahoma 39%$30.07 13.9$418.00 52%$9.08 42.6$387.00 Q$19.75 23.8$470.00 00$0.00
Oregon 45%$32.95 12.2$402.00 41%$9.95 43.2$430.00 Q$28.82 15.2$438.00 Q0$0.00
Pennsylvania 26%$35.83 11.5$412.00 52%$11.28 57.2$645.00 6%$20.96 31.2$654.00 13%$15.80 58.4$923.00
Rhode Island 13%$63.02 4.3$271.00 53%$14.40 64.3$926.00 Q0031%$15.92 65.2$1,038.00
South Carolina 64%$35.63 9.6$342.00 28%$13.06 29.1$380.00 5%$28.91 11.9$344.00 Q0$0.00
South Dakota 25%$32.18 14.2$457.00 58%$7.16 53.5$383.00 14%$13.93 51.6$719.00 Q0$0.00
Tennessee 60%$31.18 12.7$396.00 35%$9.16 43.8$401.00 3%$23.59 16.7$394.00 Q0$0.00
Texas 51%$33.03 7.6$251.00 42%$12.17 23.5$286.00 2%$22.14 18.7$414.00 00$0.00
Utah 13%$34.62 5.2$180.00 86%$9.76 46.3$452.00 Q0000$0.00
Vermont 6%$53.27 4.9$261.00 21%$13.99 47.1$659.00 13%$24.43 41.3$1,009.00 46%$16.55 62$1,026.00
Virginia 50%$35.48 9.3$330.00 36%$12.41 44$546.00 5%$25.56 17.8$455.00 4%$18.71 39.5$739.00
Washington 55%$28.62 14.5$415.00 37%$10.73 46.4$498.00 Q$23.83 18.3$436.00 Q0$0.00
West Virginia 45%$33.67 18.8$633.00 43%$9.68 59.9$580.00 Q$25.41 20.7$526.00 Q0$0.00
Wisconsin 14%$40.96 7.3$299.00 71%$7.57 59.7$452.00 10%$14.37 64.1$921.00 Q0$0.00
Wyoming 18%$33.51 14.8$496.00 71%$8.75 63$551.00 8%$17.15 83.4$1,430.00 00$0.00
US Average34%$35.29 8.5$300.00 51%$8.37 56.6$474.00 4%$19.55 35.7$698.00 4%$17.49 58.5$1,023.00