Holly Energy Partners, L.P. Reports Second Quarter Results

• Reported net income attributable to HEP of $55.7 million or $0.53 per unit
• Announced quarterly distribution of $0.35 per unit
• Reported EBITDA of $88.1 million and Adjusted EBITDA of $88.3 million

Holly Energy Partners, L.P. ("HEP" or the "Partnership") (NYSE:HEP) today reported financial results for the second quarter of 2021. Net income attributable to HEP for the second quarter of 2021 was $55.7 million ($0.53 per basic and diluted limited partner unit), compared to $76.5 million ($0.73 per basic and diluted limited partner unit) for the second quarter of 2020.

The second quarter results reflect a gain of $5.3 million related to the sale of a 6-inch refined product pipeline that connected HollyFrontier Corporation's ("HollyFrontier" or "HFC") Navajo Refinery to terminals in El Paso for gross proceeds of $7.0 million. Net income attributable to HEP for the second quarter of 2020 included a gain on sales-type leases of $33.8 million. Excluding these items, net income attributable to HEP for the second quarters of 2021 and 2020 were $50.5 million ($0.48 per basic and diluted limited partner unit) and $42.6 million ($0.40 per basic and diluted limited partner unit), respectively. The increase in earnings was mainly due to higher volumes across our pipelines and higher interest income associated with sales-type leases, partially offset by higher operating expenses.

Distributable cash flow was $66.7 million for the quarter, an increase of $1.2 million, or 1.9% compared to the second quarter of 2020. HEP declared a quarterly cash distribution of $0.35 per unit on July 22, 2021.

Commenting on our 2021 second quarter results, Michael Jennings, Chief Executive Officer, stated, "HEP delivered solid results in the quarter, supported by safe and reliable operations and continued improvement in crude and refined product demand in the markets we serve. Looking forward, we remain focused on consistent operational execution as we continue to see demand recovery from COVID-19 in the markets we serve."

Impact of COVID-19 on Our Business

Our business depends in large part on the demand for the various petroleum products we transport, terminal and store in the markets we serve. The impact of the COVID-19 pandemic on the global macroeconomy created diminished demand for refined products and crude oil transportation, and for the terminalling and storage services that we provide. Since the declines in demand at the beginning of the COVID-19 pandemic, we began to see improvement in demand for these products and services beginning late in the second quarter of 2020 that continued through the second quarter of 2021 with volumes in many of our regions returning to pre-pandemic levels. We expect our customers will continue to adjust refinery production levels commensurate with market demand, and with the increasing availability of vaccines, we believe there is a path to a fulsome recovery in demand in 2021. For additional details of the impact of COVID-19 on our business, please see our Form 10-Q for the quarter ended June 30, 2021.

Second Quarter 2021 Revenue Highlights

Revenues for the second quarter were $126.2 million, an increase of $11.4 million compared to the second quarter of 2020. The increase was mainly due to a 14% increase in overall crude and product pipeline volumes.

• Revenues from our refined product pipelines were $28.7 million, an increase of $3.7 million compared to the second quarter of 2020. Shipments averaged 171.2 thousand barrels per day ("mbpd") compared to 158.4 mbpd for the second quarter of 2020. The volume and revenue increases were mainly due to higher volumes on pipelines servicing HollyFrontier's Navajo refinery and our UNEV pipeline.

• Revenues from our intermediate pipelines were $7.5 million, consistent with the second quarter of 2020. Shipments averaged 143.8 mbpd for the second quarter of 2021 compared to 128.5 mbpd for the second quarter of 2020. The increase in volumes was mainly due to higher throughputs on our intermediate pipelines servicing HollyFrontier's Navajo refinery while revenue remained relatively constant mainly due to contractual minimum volume guarantees.

• Revenues from our crude pipelines were $32.1 million, an increase of $5.6 million compared to the second quarter of 2020, and shipments averaged 396.7 mbpd compared to 338.4 mbpd for the second quarter of 2020. The revenue and volume increases were mainly attributable to higher volumes on our crude pipeline systems in Wyoming and Utah.

• Revenues from terminal, tankage and loading rack fees were $36.9 million, an increase of $0.6 million compared to the second quarter of 2020. Refined products and crude oil terminalled in the facilities averaged 466.7 mbpd compared to 418.0 mbpd for the second quarter of 2020. The volume increase was mainly the result of higher throughputs at HollyFrontier's El Dorado refinery. Revenues did not increase in proportion to the increase in volumes mainly due to contractual minimum volume guarantees and lower on-going revenues on our Cheyenne assets as a result of the conversion of the HollyFrontier Cheyenne refinery to renewable diesel production.

• Revenues from refinery processing units were $21.0 million, an increase of $1.5 million compared to the second quarter of 2020, and throughputs averaged 76.6 mbpd compared to 49.9 mbpd for the second quarter of 2020. The increase in volumes was mainly due to increased throughput for both our Woods Cross and El Dorado processing units. Revenues did not increase in proportion to the increase in volumes mainly due to contractual minimum volume guarantees.

Six Months Ended June 30, 2021 Revenue Highlights

Revenues for the six months ended June 30, 2021, were $253.4 million, an increase of $10.8 million compared to the six months ended June 30, 2020. The increase was mainly attributable to increased volumes on our crude pipeline systems in Wyoming and Utah, the recognition of $9.9 million of the $10 million termination fee related to the termination of HollyFrontier's minimum volume commitment on our Cheyenne assets and higher revenues on our refinery processing units partially offset by lower on-going revenues on our Cheyenne assets as well as a reclassification of certain income from revenue to interest income under sales-type lease accounting.

• Revenues from our refined product pipelines were $57.2 million, a decrease of $2.7 million compared to the six months ended June 30, 2020. Shipments averaged 167.6 mbpd compared to 169.0 mbpd for the six months ended June 30, 2020. The volume and revenue decreases were mainly due to lower volumes on pipelines servicing Delek's Big Spring refinery. Revenue also decreased due to a reclassification of certain pipeline income from revenue to interest income under sales-type lease accounting.

• Revenues from our intermediate pipelines were $15.0 million, an increase of $0.1 million compared to the six months ended June 30, 2020. Shipments averaged 129.6 mbpd compared to 135.3 mbpd for the six months ended June 30, 2020. The decrease in volumes was mainly due to lower throughputs on our intermediate pipelines servicing HollyFrontier's Tulsa refinery while revenue remained relatively constant mainly due to contractual minimum volume guarantees.

• Revenues from our crude pipelines were $62.6 million, an increase of $8.0 million compared to the six months ended June 30, 2020. Shipments averaged 385.3 mbpd compared to 367.8 mbpd for the six months ended June 30, 2020. The increases were mainly attributable to increased volumes on our crude pipeline systems in Wyoming and Utah.

• Revenues from terminal, tankage and loading rack fees were $75.1 million, an increase of $1.3 million compared to the six months ended June 30, 2020. Refined products and crude oil terminalled in the facilities averaged 418.1 mbpd compared to 446.8 mbpd for the six months ended June 30, 2020. The volume decrease was mainly the result of lower throughputs at HollyFrontier's Tulsa refinery as well as the cessation of petroleum refinery operations at HollyFrontier's Cheyenne refinery. Revenues increased mainly due to the recognition of $9.9 million of the $10 million termination fee related to the termination of HollyFrontier's minimum volume commitment on our Cheyenne assets partially offset by lower on-going revenues on our Cheyenne assets as a result of the conversion of the HollyFrontier Cheyenne refinery to renewable diesel production as well as a reclassification of certain income from revenue to interest income under sales-type lease accounting.

• Revenues from refinery processing units were $43.5 million, an increase of $4.1 million compared to the six months ended June 30, 2020. Throughputs averaged 68.7 mbpd compared to 59.8 mbpd for the six months ended June 30, 2020. The increase in volumes was mainly due to increased throughput for both our Woods Cross and El Dorado processing units. Revenues increased mainly due to higher recovery of natural gas costs as well as higher throughputs.

Operating Costs and Expenses Highlights

Operating costs and expenses were $69.9 million and $150.4 million for the three and six months ended June 30, 2021, representing increases of $7.6 million and $26.4 million from the three and six months ended June 30, 2020, respectively. The increases were mainly due to the goodwill impairment charge related to our Cheyenne reporting unit, higher maintenance costs, pipeline rental costs and natural gas costs, partially offset by lower materials and supplies, and property taxes.

Interest expense was $13.9 million and $27.2 million for the three and six months ended June 30, 2021, representing an increase of $0.2 million and a decrease of $4.4 million over the same period of 2020. The decrease was mainly due to market interest rate decreases under our senior secured revolving credit facility and refinancing our $500 million aggregate principal amount of 6.0% senior notes due 2024 with $500 million aggregate principal amount of 5.0% senior notes due 2028.

We have scheduled a webcast conference call today at 8:30 AM ET to discuss financial results and this morning's announced acquisition (replacing the previously scheduled earnings call at 4:00 PM ET):

https://event.on24.com/wcc/r/3347467/55757B35D3CCD93D54C9366AD04CA5C5

An audio archive of this webcast will be available using the above noted link through August 17, 2021.

About Holly Energy Partners, L.P.

Holly Energy Partners, L.P., headquartered in Dallas, Texas, provides petroleum product and crude oil transportation, terminalling, storage and throughput services to the petroleum industry, including HollyFrontier subsidiaries. The Partnership, through its subsidiaries and joint ventures, owns and/or operates petroleum product and crude pipelines, tankage and terminals in Texas, New Mexico, Washington, Idaho, Oklahoma, Utah, Nevada, Wyoming and Kansas, as well as refinery processing units in Utah and Kansas.

HollyFrontier Corporation, headquartered in Dallas, Texas, is an independent petroleum refiner and marketer that produces high value light products such as gasoline, diesel fuel, jet fuel and other specialty products. HollyFrontier owns and operates refineries located in Kansas, Oklahoma, New Mexico and Utah and markets its refined products principally in the Southwest U.S., the Rocky Mountains extending into the Pacific Northwest and in other neighboring Plains states. In addition, HollyFrontier produces base oils and other specialized lubricants in the U.S., Canada and the Netherlands, and exports products to more than 80 countries. HollyFrontier also owns a 57% limited partner interest and a non-economic general partner interest in Holly Energy Partners, L.P.

The statements in this press release relating to matters that are not historical facts are "forward-looking statements" within the meaning of the federal securities laws. Forward-looking statements use words such as "anticipate," "project," "expect," "plan," "goal," "forecast," "strategy," "intend," "should," "would," "could," "believe," "may," and similar expressions and statements regarding our plans and objectives for future operations are intended to identify forward-looking statements. These statements are based on our beliefs and assumptions and those of our general partner using currently available information and expectations as of the date hereof, are not guarantees of future performance and involve certain risks and uncertainties. Our forward-looking statements are subject to a variety of risks, uncertainties and assumptions. Although we and our general partner believe that such expectations reflected in such forward-looking statements are reasonable, neither we nor our general partner can give any assurances that our expectations will prove to be correct. Therefore, actual outcomes and results could materially differ from what is expressed, implied or forecast in these statements. Any differences could be caused by a number of factors including, but not limited to:

• HollyFrontier's and the Partnership's ability to successfully close the pending acquisition of Sinclair Oil Corporation and Sinclair Transportation Company (collectively, "Sinclair", and such transactions, the "Sinclair Transactions"), or once closed, integrate the operations of Sinclair with its existing operations and fully realize the expected synergies of the Sinclair Transactions or on the expected timeline;
• the satisfaction or waivers of the conditions precedent to the proposed Sinclair Transactions, including without limitation, the receipt of the HollyFrontier stockholder approval for the issuance of HF Sinclair common stock at closing and regulatory approvals (including clearance by antitrust authorities necessary to complete the Sinclair Transactions on the terms and timeline desired);
• risks relating to the value of HEP's limited partner common units to be issued at the closing of the Sinclair Transactions from sales in anticipation of closing and from sales by the Sinclair holders following the closing of the Sinclair Transactions;
• legal proceedings that may be instituted against the Partnership following the announcement of the proposed Sinclair Transactions;
• the extraordinary market environment and effects of the COVID-19 pandemic, including a significant decline in demand for refined petroleum products in markets we serve;
• risks and uncertainties with respect to the actual quantities of petroleum products and crude oil shipped on our pipelines and/or terminalled, stored or throughput in our terminals and refinery processing units;
• the economic viability of HollyFrontier, our other customers and our joint ventures' other customers, including any refusal or inability of our or our joint ventures' customers or counterparties to perform their obligations under their contracts;
• the demand for refined petroleum products in the markets we serve;
• our ability to purchase and integrate future acquired operations;
• our ability to complete previously announced or contemplated acquisitions;
• the availability and cost of additional debt and equity financing;
• the possibility of temporary or permanent reductions in production or shutdowns at refineries utilizing our pipelines, terminal facilities and refinery processing units, due to reasons such as infection in the workforce, in response to reductions in demand or lower gross margins due to the economic impact of the COVID-19 pandemic, and any potential asset impairments resulting from such actions;
• the effects of current and future government regulations and policies, including the effects of current and future restrictions on various commercial and economic activities in response to the COVID-19 pandemic;
• delay by government authorities in issuing permits necessary for our business or our capital projects;
• our and our joint venture partners' ability to complete and maintain operational efficiency in carrying out routine operations and capital construction projects;
• the possibility of terrorist or cyberattacks and the consequences of any such attacks;
• general economic conditions, including uncertainty regarding the timing, pace and extent of an economic recovery in the United States;
• the impact of recent or proposed changes in the tax laws and regulations that affect master limited partnerships; and
• other financial, operational and legal risks and uncertainties detailed from time to time in our Securities and Exchange Commission filings.

The forward-looking statements speak only as of the date made and, other than as required by law, we undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

RESULTS OF OPERATIONS (Unaudited)

Income, Distributable Cash Flow and Volumes

The following tables present income, distributable cash flow and volume information for the three and six months ended June 30, 2021 and 2020.

Set forth below is our calculation of EBITDA and Adjusted EBITDA.

Set forth below is our calculation of distributable cash flow.

Set forth below is certain balance sheet data.

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