DailyFuelDiesel prices by state, new every week
Week of Oct 12 · new prices Tue, Oct 20Map

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COColorado

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$6.302+3.5¢ +0.6%

Up 3.5¢ from $6.267 last week.

Rocky Mountain average, same in 5 statesPrices for the week of Oct 12, 2026. New prices Tue, Oct 20.

Next door

Compared with Colorado, lowest first

Each price is the weekly average for that state's region, not a pump price. Kansas, Nebraska and Oklahoma are in the Midwest region and New Mexico is in the Gulf Coast region.

Same price as Colorado in 4 other states: ID MT UT WY

Truck stops in Colorado

Rocky Mountain price history

Oct 12, 2026 $6.302 +3.5¢ Point at the line, or press the arrow keys, to read a week.Slide a finger along the line to read a week.

Oct 12, 2026 $6.302 +3.5¢ Point at the line, or press the arrow keys, to read a week.Slide a finger along the line to read a week.

Show the numbers
Rocky Mountain weekly diesel price since June 2022, newest first
Week ofPrice $
Oct 12, 20266.302
Oct 5, 20266.267
Sep 28, 20266.407
Sep 21, 20266.340
Sep 14, 20266.066
Sep 7, 20265.805
Aug 31, 20265.555
Aug 24, 20265.537
Aug 17, 20265.427
Aug 10, 20265.271
Aug 3, 20265.285
Jul 27, 20265.141
Jul 20, 20264.935
Jul 13, 20264.600
Jul 6, 20264.484
Jun 29, 20264.602
Jun 22, 20264.795
Jun 15, 20265.019
Jun 8, 20265.200
Jun 1, 20265.331
May 25, 20265.493
May 18, 20265.549
May 11, 20265.491
May 4, 20265.517
Apr 27, 20265.270
Apr 20, 20265.213
Apr 13, 20265.256
Apr 6, 20265.412
Mar 30, 20265.270
Mar 23, 20265.174
Mar 16, 20264.796
Mar 9, 20264.397
Mar 2, 20263.737
Feb 23, 20263.683
Feb 16, 20263.607
Feb 9, 20263.539
Feb 2, 20263.419
Jan 26, 20263.367
Jan 19, 20263.246
Jan 12, 20263.185
Jan 5, 20263.222
Dec 29, 20253.233
Dec 22, 20253.304
Dec 15, 20253.385
Dec 8, 20253.498
Dec 1, 20253.665
Nov 24, 20253.723
Nov 17, 20253.813
Nov 10, 20253.803
Nov 3, 20253.676
Oct 27, 20253.686
Oct 20, 20253.585
Oct 13, 20253.658
Oct 6, 20253.671
Sep 29, 20253.732
Sep 22, 20253.747
Sep 15, 20253.722
Sep 8, 20253.754
Sep 1, 20253.753
Aug 25, 20253.748
Aug 18, 20253.757
Aug 11, 20253.776
Aug 4, 20253.793
Jul 28, 20253.781
Jul 21, 20253.770
Jul 14, 20253.713
Jul 7, 20253.666
Jun 30, 20253.659
Jun 23, 20253.689
Jun 16, 20253.548
Jun 9, 20253.481
Jun 2, 20253.453
May 26, 20253.445
May 19, 20253.512
May 12, 20253.463
May 5, 20253.460
Apr 28, 20253.470
Apr 21, 20253.477
Apr 14, 20253.480
Apr 7, 20253.499
Mar 31, 20253.472
Mar 24, 20253.415
Mar 17, 20253.376
Mar 10, 20253.414
Mar 3, 20253.478
Feb 24, 20253.495
Feb 17, 20253.510
Feb 10, 20253.528
Feb 3, 20253.471
Jan 27, 20253.431
Jan 20, 20253.485
Jan 13, 20253.399
Jan 6, 20253.430
Dec 30, 20243.370
Dec 23, 20243.328
Dec 16, 20243.357
Dec 9, 20243.329
Dec 2, 20243.431
Nov 25, 20243.450
Nov 18, 20243.458
Nov 11, 20243.525
Nov 4, 20243.583
Oct 28, 20243.655
Oct 21, 20243.636
Oct 14, 20243.635
Oct 7, 20243.620
Sep 30, 20243.612
Sep 23, 20243.608
Sep 16, 20243.588
Sep 9, 20243.567
Sep 2, 20243.590
Aug 26, 20243.608
Aug 19, 20243.650
Aug 12, 20243.697
Aug 5, 20243.702
Jul 29, 20243.718
Jul 22, 20243.731
Jul 15, 20243.750
Jul 8, 20243.790
Jul 1, 20243.745
Jun 24, 20243.710
Jun 17, 20243.682
Jun 10, 20243.643
Jun 3, 20243.685
May 27, 20243.706
May 20, 20243.746
May 13, 20243.791
May 6, 20243.785
Apr 29, 20243.787
Apr 22, 20243.883
Apr 15, 20243.956
Apr 8, 20244.008
Apr 1, 20243.949
Mar 25, 20243.986
Mar 18, 20243.968
Mar 11, 20243.992
Mar 4, 20244.006
Feb 26, 20243.999
Feb 19, 20243.957
Feb 12, 20243.805
Feb 5, 20243.650
Jan 29, 20243.645
Jan 22, 20243.696
Jan 15, 20243.755
Jan 8, 20243.797
Jan 1, 20243.887
Dec 25, 20233.916
Dec 18, 20233.933
Dec 11, 20234.049
Dec 4, 20234.128
Nov 27, 20234.204
Nov 20, 20234.268
Nov 13, 20234.356
Nov 6, 20234.489
Oct 30, 20234.650
Oct 23, 20234.754
Oct 16, 20234.664
Oct 9, 20234.717
Oct 2, 20234.778
Sep 25, 20234.801
Sep 18, 20234.864
Sep 11, 20234.810
Sep 4, 20234.727
Aug 28, 20234.658
Aug 21, 20234.500
Aug 14, 20234.394
Aug 7, 20234.288
Jul 31, 20234.127
Jul 24, 20233.974
Jul 17, 20233.927
Jul 10, 20233.939
Jul 3, 20233.950
Jun 26, 20234.022
Jun 19, 20234.032
Jun 12, 20234.013
Jun 5, 20234.044
May 29, 20234.077
May 22, 20234.088
May 15, 20234.089
May 8, 20234.105
May 1, 20234.146
Apr 24, 20234.124
Apr 17, 20234.104
Apr 10, 20234.095
Apr 3, 20234.150
Mar 27, 20234.231
Mar 20, 20234.350
Mar 13, 20234.431
Mar 6, 20234.498
Feb 27, 20234.559
Feb 20, 20234.621
Feb 13, 20234.660
Feb 6, 20234.741
Jan 30, 20234.742
Jan 23, 20234.736
Jan 16, 20234.729
Jan 9, 20234.697
Jan 2, 20234.730
Dec 26, 20224.745
Dec 19, 20224.860
Dec 12, 20225.027
Dec 5, 20225.250
Nov 28, 20225.392
Nov 21, 20225.438
Nov 14, 20225.401
Nov 7, 20225.338
Oct 31, 20225.302
Oct 24, 20225.338
Oct 17, 20225.268
Oct 10, 20225.199
Oct 3, 20224.870
Sep 26, 20224.885
Sep 19, 20224.932
Sep 12, 20224.961
Sep 5, 20224.971
Aug 29, 20224.972
Aug 22, 20224.885
Aug 15, 20224.963
Aug 8, 20225.040
Aug 1, 20225.181
Jul 25, 20225.389
Jul 18, 20225.546
Jul 11, 20225.674
Jul 4, 20225.732
Jun 27, 20225.770
Jun 20, 20225.782
Jun 13, 20225.692

Then and now

Rocky Mountain average, dollars a gallon

4 weeks ago
$6.066
Up 23.6¢ since then
A year ago
$3.658
Up $2.644 since then
Past year high
$6.407
Week of Sep 28
Past year low
$3.185
Week of Jan 12

Tax

Cents a gallon, 2024 federal table

Tax is already in the pump price above.

Colorado tax
20.5¢
Rate set January 1993
Federal tax
24.4¢
Same in every state
Total tax
44.9¢
State plus federal
Rank
7th lowest
Out of 48 states ranked
What the price and tax include

This counts state taxes charged by the gallon. Sales taxes, local fuel taxes and some other state taxes on fuel aren't in it, so what you pay can be more. From the 2024 federal highway table. The newest rate in it took effect in October 2024, and many states change their rate every year, so it may be different now.

This is the DOE weekly diesel price. The government's EIA runs the survey. Fuel surcharge contracts use either the U.S. or a regional DOE price, so check which one yours uses. Dyed farm diesel is untaxed, so it usually costs less than the on-road diesel priced here.

Work out a fuel surcharge

Check today's Colorado average on AAA's website