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EX-99.1

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EXHIBIT 99.1

Exhibit 99.1

Antero Midstream Announces Third Quarter 2026 Financial and Operating Results

Denver, Colorado, October 28, 2026—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its third quarter 2026 financial and operating results. The relevant consolidated financial statements are included in Antero Midstream’s Quarterly Report on Form 10-Q for the three months ended September 30, 2026.

Highlights:

·Gathering and compression volumes increased by 19% and 17%, respectively, compared to the prior year quarter

·Net Income was $393 million, or $0.82 per diluted share, a 242% per share increase compared to the prior year quarter

·Adjusted Net Income was $134 million, or $0.28 per diluted share, a 4% per share increase compared to the prior year quarter (non-GAAP measure)

·Adjusted EBITDA was $291 million, a 3% increase compared to the prior year quarter (non-GAAP measure)

·Capital expenditures were $51 million, in line with the prior year quarter

·Adjusted Free Cash Flow before dividends was $555 million and Adjusted Free Cash Flow after dividends was $449 million, including a $377 million gain on litigation (non-GAAP measure)

·Leverage declined to 2.8x as of September 30, 2026 (non-GAAP measure)

Michael Kennedy, CEO and President of Antero Midstream said, “Antero Midstream delivered another quarter of year-over-year throughput and earnings growth with flat capital investments. On the operational front, we are currently servicing two drilled but uncompleted growth pads utilizing our legacy water system and remain on track to complete our HG water system integration efforts by year-end. These growth pads and integration efforts are expected to drive visible EBITDA growth in the fourth quarter of 2026 and 2027.”

Justin Agnew, CFO of Antero Midstream, said “We continue to increase our assets while maintaining a strong balance sheet and returning capital to shareholders. This includes reducing absolute debt by over $400 million during the quarter, calling our nearest maturity senior notes, and accelerating share repurchases once our leverage target was achieved. Including the internally financed HG acquisition earlier this year, our leverage is flat and our share count has declined by 4 million shares compared to this time last year.”

For a discussion of the non-GAAP financial measures, including Adjusted

EBITDA, Adjusted Net Income, Leverage, and Adjusted Free Cash Flow after dividends please see “Non-GAAP Financial Measures and Definitions.”

Share Repurchases

During the third quarter of 2026, Antero Midstream repurchased 1.3 million shares for approximately $27 million. Antero Midstream had approximately $283 million of remaining capacity under its share repurchase program as of September 30, 2026.

Strategic and Operating Updates

Antero Midstream commenced water operations to support Antero Resources two drilled but uncompleted growth pads that will utilize the fresh water system in the fourth quarter of 2026. These two pads are expected to drive additional throughput growth in 2027.

The Company expects to complete its water system integration efforts by year-end that will connect the acquired water system to Antero Midstream’s legacy system with the capability to service Antero’s entire footprint at high deliverability rates. Antero Midstream also expects to place in service 80 MMcf/d of additional compression capacity in the liquids-rich corridor in the fourth quarter of 2026. Lastly, the Company continued initial construction on East Side Express, the Company’s first regional connectivity expansion project.

Capital expenditures totaled $51 million during the third quarter of 2026. The Company invested $37 million in gathering and compression and approximately $14 million in water infrastructure. In the third quarter of 2026, Antero Midstream connected 22 wells to its gathering system and serviced 22 wells with its fresh water delivery system. During the quarter there was approximately 10 Bcf of reduced throughput due to curtailments and Antero Midstream expects approximately 15 to 20 Bcf of curtailments in the fourth quarter of 2026.

2026 Guidance Update

Antero Midstream is updating its 2026 guidance to reflect receipt of the Clearwater litigation proceeds. Based on the $377 million of litigation proceeds, net of the impact of interest expense and current income tax expense, the Company is increasing 2026 Adjusted Free Cash Flow before and after dividends guidance by $370 million. All other guidance ranges not referenced below remain unchanged.

The following is a summary of Antero Midstream’s updated 2026 guidance ($ in millions, except per share amounts):

Twelve Months Ended

December 31, 2026 Change vs.

Prior

Guidance

Low High (At midpoint)

Net Income $765 $815 $280

Interest Expense 200 220 (10)

Current Income Tax Expense 10 20 15

Adjusted Free Cash Flow Before Dividends 1,125 1,185 370

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EX-99.1

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EXHIBIT 99.1

Exhibit 99.1

Antero Midstream Announces Second Quarter 2026 Financial and Operating Results

Denver, Colorado, July 29, 2026—Antero Midstream Corporation (NYSE: AM) (“Antero Midstream” or the “Company”) today announced its second quarter 2026 financial and operating results. The relevant consolidated financial statements are included in Antero Midstream’s Quarterly Report on Form 10-Q for the three months ended June 30, 2026.

Highlights:

·Gathering and compression volumes increased by 19% and 17%, respectively, compared to the prior year quarter

·Net Income was $114 million, or $0.24 per diluted share, an 8% per share decrease compared to the prior year quarter

·Adjusted Net Income was $131 million, or $0.27 per diluted share, a 7% per share decrease compared to the prior year quarter (non-GAAP measure)

·Adjusted EBITDA was $289 million, a 2% increase compared to the prior year quarter (non-GAAP measure)

·Capital expenditures were $47 million

·Adjusted Free Cash Flow after dividends was $80 million (non-GAAP measure)

·Commenced construction on the Company’s first intrastate regional pipeline (“East Side Express”)

·Received $371 million in damages and interest from Veolia in July and called $650 million of senior notes due 2028 at par

Michael Kennedy, CEO and President of Antero Midstream said, “During the quarter, Antero Midstream gathered over 4.1 Bcf/d of production, which was a 19% increase year-over-year and a new company record. Our water integration projects remain on track, which we expect to drive high-single digit EBITDA growth in 2027.”

Mr. Kennedy further added, “In addition, during the quarter we commenced initial construction of our first intrastate regional pipeline, the “East Side Express”, which will enhance regional connectivity within our operating areas. This pipeline positions Antero Midstream for future dry gas growth in West Virginia with decades of underlying inventory to capture growing regional demand. This east-west bi-directional pipeline represents our first regional pipeline and adds significant optionality for future intrastate pipeline projects that provide an integrated midstream solution connecting low-cost supply to demand centers.”

Justin Agnew, CFO of Antero Midstream, said “The second quarter marked our twelfth consecutive quarter of generating Free Cash Flow after dividends, highlighting the consistency of operations over the last three years. Looking ahead, we expect an increase in volumes across both the gathering and water businesses to drive EBITDA growth in the back half of the year in line with our full year guidance range.”

Mr. Agnew further added, “In July, Antero Midstream received approximately $371 million of proceeds from Veolia, which allowed us to reduce absolute debt and be below our 3-times leverage target ahead of expectations. After calling the $650 million of senior notes due 2028 at par, Antero Midstream has over $600 million of liquidity and no near-term maturities. This provides us with significant liquidity and balance sheet capacity to pursue additional growth opportunities and further return of capital to shareholders.”

For a discussion of the non-GAAP financial measures, including Adjusted EBITDA, Adjusted Net Income, Leverage, and Adjusted Free Cash Flow after dividends please see “Non-GAAP Financial Measures and Definitions.”

Clearwater Lawsuit Update

On June 23, 2026 the Colorado Supreme Court affirmed that Antero Midstream had prevailed on its claims against Veolia relating to the Clearwater Facility. On July 24, 2026 Antero Midstream received approximately $371 million in damages and interest. These proceeds and borrowings under the revolving credit facility are being used to call the $650 million of senior unsecured notes due 2028 at par.

Share Repurchases

During the second quarter of 2026, Antero Midstream repurchased 0.4 million shares for approximately $8 million. Antero Midstream had approximately $310 million of remaining capacity under its share repurchase program as of June 30, 2026.

Strategic and Operating Updates

During the quarter, Antero Midstream began its multiyear investment in the East Side Express, the Company’s first dry gas regional connectivity expansion project. This project will expand dry gas deliveries to several different long haul and regional pipelines and will enhance optionality to local markets in order to capture growing regional demand around the Company’s area of operations.

Antero Midstream connected 26 wells to its gathering system and serviced 21 wells with its fresh water delivery system during the quarter. Capital expenditures were $47 million during the second quarter of 2026. The Company invested $33 million in gathering and compression and $14 million in water infrastructure.

Second Quarter 2026 Financial Results

Gathering and compression volumes increased by 19% and 17%, respectively, compared to the prior year quarter. Fresh wa

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