Third Amendment to Amended and Restated Master Tolling Agreement (Operating Assets), dated effective January 1, 2023, by and between HF Sinclair El Dorado Refining LLC, HF Sinclair Woods Cross Refining LLC and Holly Energy Partners - Operating L.P

IN WITNESS WHEREOF, the Parties have caused this Amendment to be executed by their duly authorized officers to be effective as of the date first set forth above.

Parties:

HF Sinclair El Dorado and HEP Operating, as to the El Dorado Assets.

HF Sinclair Woods Cross and HEP Operating, as to the Woods Cross Assets.

Applicable Assets; Minimum Throughput Commitment; Tolling Fees and Adjustments; Applicable Term

*    As of January 1, 2023.

1.    The “Feedstock” for the El Dorado Assets is light naphtha and heavy naphtha. The “Feedstock” for the Woods Cross Assets is as follows: Crude Unit 2 – crude oil; FCC Unit 2 – crude tower bottoms and outside gas oil; Poly Unit – olefins.

2.    El Dorado Only: The Tolling Fee shall never be less than $0.36 per BBL of Feedstock. If as a result of a reduction to the Tolling Fee or Minimum Throughput Commitment for a Contract Quarter pursuant to Section 2.2(d) of the Agreement, the Applicable Refinery Owner has overpaid its Tolling Fees for a Contract Quarter, the Applicable Refinery Owner shall receive a credit against its Tolling Fees due for the following Contract Quarter in the amount of such overpayment.

3.    El Dorado Only: The Tolling Fee, as previously adjusted on a cumulative basis, shall be adjusted on July 1 of each calendar year, commencing July 1, 2017, by an amount equal to a percentage calculated as follows: (A) 0.75 x the change in the PPI as described below, plus (B) 0.25 x the annual HF Sinclair Merit Compensation Adjustment (positive or negative) for such calendar year. The change in the PPI is the upper change in the annual change rounded to four decimal places of the Producers Price Index-Commodities-Finished Goods, (PPI), et al. (“PPI”), produced by the U.S. Department of Labor, Bureaus of Labor Statistics. The series ID is WPUFD49207– located at http://www.bls.gov/data/. The change in PPI for each year shall be calculated as follows: annual PPI index (most current year) less annual PPI index (most current year minus 1) divided by annual PPI index (most current year minus 1); provided that the change in PPI in any year shall not be less than one percent (1%) or more than three percent (3%). For the avoidance of doubt, if the change in PPI in any year is less than one percent (1%) (including if the change in the PPI is negative) it will be rounded up to one percent (1%) and if the change in PPI in any year is greater than three percent (3%) it will be rounded down to three percent (3%). If either index is no longer published, the Parties shall negotiate in good faith to agree on a new index (as applicable) that gives comparable protection against inflation or deflation, and the same method of adjustment for increases or decreases in the new index shall be used to calculate increases or decreases in the Tolling Fee. If the Parties are unable to agree on a new index, a new index will be determined in accordance with the dispute resolution provisions set forth in the Article VIII of Omnibus Agreement, and the same method of adjustment for increases or decreases in the new index shall be used to calculate increases or decreases in the Tolling Fee. The annual HF Sinclair Merit Compensation Adjustment is the company-wide increase (or decrease) in salary for the year in which the adjustment occurs as determined by the HF Sinclair Chief Executive Officer and Chief Human Resources Officer (excluding merit compensation adjustments for executive officers that are determined by the HF Sinclair Board of Directors (or a committee thereof) and excluding any annual increases for union employees). Examples of the annual Tolling Fee adjustment under various scenarios are as follows:

(1)if the change in PPI is 0% and the DINO Merit Compensation Adjustment is 3.5%, the Tolling Fee adjustment would be (0.75 x 1%) + (0.25 x 3.5%) = 1.625%

(2)if the change in PPI is 2% and the DINO Merit Compensation Adjustment is 2%, the Tolling Fee adjustment would be (0.75 x 2%) + (0.25 x 2%) = 2%

(3)if the change in PPI is 5% and the DINO Merit Compensation Adjustment is 2%, the Tolling Fee adjustment would be (0.75 x 3%) + (0.25 x 2%) = 2.75%

(4)if the change in PPI is 0% and the DINO Merit Compensation Adjustment is -2%, the Tolling Fee adjustment would be (0.75 x 1%) + (0.25 x (-2%)) = 0.25%

4.    After the first turnaround on the Applicable Asset during the Applicable Term, HEP Operating will calculate its aggregate Turnaround Costs incurred in connection therewith. In the event such aggregate Turnaround Costs for the Applicable Asset exceeds the Accrued Turnaround Cost set forth above then (A) a turnaround surcharge (the “Turnaround Surcharge”) will be added to the Tolling Fee based on each BBL of Feedstock (using the Minimum Throughput Commitment) in order to allow HEP Operating to recover (i) such Turnaround Costs in excess of the Accrued Turnaround Cost plus (ii) a ten percent (10%) return on such excess (the aggregate amount specified in clauses (i) and (ii), the “Turnaround Payment”). Such Turnaround Surcharge shall be paid by the Applicable Refinery Owner to HEP Operating on each BBL of Feedstock processed through the Applicable Asset until the earlier to occur of (i) the expiration of the Applicable Term or (ii) the recovery by HEP Operating of the Turnaround Payment. In addition, the Tolling Fee will be adjusted by the amount necessary to recover the new estimated turnaround expense for the remainder of the Applicable Term (based on the Minimum Throughput Commitment).

The aggregate Turnaround Costs incurred though December 31, 2022 for the Woods Cross FCC Unit 2 exceeded the Accrued Turnaround Costs set forth above. Therefore, effective January 1, 2023, the tolling fee above has been increased by the amount necessary to recover the new estimated turnaround expense for the remainder of the Applicable Term. At the Woods Cross Refinery, the Turnaround Costs adjustment only applies to the FCC Unit 2 as the other two Applicable Assets at the Woods Cross Refinery did not exceed the Accrued Turnaround costs set forth in the chart above.

In addition, HEP Operating will add a $0.7161/BBL Turnaround Surcharge to the FCC Unit 2 tolling fee to recover the Turnaround Payment. This Turnaround Surcharge should be applied to each BBL of Feedstock until the earlier of (i) the expiration of the Applicable Term or (ii) the aggregate Turnaround Surcharge billings reach $17,170,646 (23.978,000 barrels x $0.7161). The Turnaround Surcharge is not subject to the annual fee adjustment.

5.    If at the end of any calendar month during the Applicable Term the aggregate cost of gas incurred by HEP Operating in connection with the operation of the Applicable Assets exceeds the Assumed Fuel Gas Cost, the Applicable Refinery Owner shall promptly pay to HEP Operating an amount equal to the positive difference, if any, of (i) the aggregate cost of fuel gas incurred by HEP Operating in connection with the operation of the Applicable Assets during such calendar month less (ii) the Assumed Fuel Gas Cost.

6.    Determined on a Contract Quarter basis.

7.    Woods Cross Only: The Tolling Fee, as previously adjusted on a cumulative basis, shall be adjusted on July 1 of each calendar year, commencing July 1, 2017, by an amount equal to a percentage calculated as follows: (A) 0.5 x the change in the PPI as described below, plus (B) 0.5 x the annual increase under the then current Woods Cross union contract. The change in the PPI is the upper change in the annual change rounded to four decimal places of the Producers Price Index-Commodities-Finished Goods, (PPI), et al. (“PPI”), produced by the U.S. Department of Labor, Bureaus of Labor Statistics. The series ID is WPUFD49207– located at http://www.bls.gov/data/. The change in PPI for each year shall be calculated as follows: annual PPI index (most current year) less annual PPI index (most current year minus 1) divided by annual PPI index (most current year minus 1). If either index is no longer published, the Parties shall negotiate in good faith to agree on a new index (as applicable) that gives comparable protection against inflation or deflation, and the same method of adjustment for increases or decreases in the new index shall be used to calculate increases or decreases in the Tolling Fee. If the Parties are unable to agree on a new index, a new index will be determined in accordance with the dispute resolution provisions set forth in the Article VIII of Omnibus Agreement, and the same method of adjustment for increases or decreases in the new index shall be used to calculate increases or decreases in the Tolling Fee. The annual increase under the then current Woods Cross union contract is the annual base pay increase given to union employees at Woods Cross, currently on or about February 1 of each year. Examples of the annual Tolling Fee adjustment under various scenarios are as follows:

(1)    if the change in PPI is 0% and the annual increase under the then current Woods Cross union contract is 3.5%, the Tolling Fee adjustment would be (0.5 x 0%) + (0.5 x 3.5%) = 1.75%

(2)    if the change in PPI is 2% and the annual increase under the then current Woods Cross union contract is 2%, the Tolling Fee adjustment would be (0.5 x 2%) + (0.5 x 2%) = 2%

(3)    if the change in PPI is 5% and the annual increase under the then current Woods Cross union contract is 2%, the Tolling Fee adjustment would be (0.5 x 5%) + (0.5 x 2%) = 3.5%10.

(4)    if the change in PPI is -1% and the annual increase under the then current Woods Cross union contract is 2%, the Tolling Fee adjustment would be (0.5 x -1%) + (0.5 x 2%) = 0.5%.    

8.     Woods Cross Only: If the Applicable Refinery Owner has overpaid its monthly Tolling Fees after adjustments to Tolling Fees or Minimum Throughput Commitments for a Contract Quarter pursuant to Section 2.2(d) of the Agreement, the Applicable Refinery Owner shall be entitled to apply any such overpayment as a credit against Tolling Fees within the succeeding twelve months for volumes of Feedstock delivered to HEP Operating in excess of the Minimum Throughput Commitment for any of the Applicable Assets. If any such overpayment has not been credited within twelve months of the overpayment, such overpayment shall be credited against Tolling Fees due with respect to any Minimum Throughput Commitment for any of the Applicable Assets, or if there are no such Tolling Fees due, such overpayment shall be credited against any other obligations owed by the Applicable Refinery Owner, or its Affiliates, to HEP Operating.