Midstream Infrastructure · Mid-Tier · Midstream · USA
Last updated 21 June 2026
Data compiled from public filings — information only, not investment advice. AI‑assisted; see methodology.
Portfolio Aggregate · 1 project
Portfolio mode — asset rows are for context only; tab totals use the company aggregation.
Antero Midstream Corporation Consolidated
Portfolio · Other · Operating
Project information
As at 31 December 2025
Description
As at 31 December 2025
Midstream company that owns, operates and develops gathering, compression, water handling and processing/fractionation assets primarily servicing Antero Resources' production in the Appalachian Basin of West Virginia and Ohio. Assets comprise low- and high-pressure gathering pipelines and compressor stations, two independent water handling systems, and a 50% interest in a processing and fractionation joint venture operated by MarkWest (MPLX). Pending divestiture: on December 5, 2025 the company agreed to sell substantially all of its Utica Shale midstream assets in Ohio for $400 million, expected to close in February 2026.
Portfolio Aggregate · Processing facilities
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Processing facilities · 5 projects
Appalachian Basin Gathering & Compression
Asset · Gathering System · Operating
Project information
As at 31 December 2025
Description
As at 31 December 2025
Natural gas gathering and compression system servicing Antero Resources, comprising 426 miles of low-pressure gathering pipeline, 305 miles of high-pressure gathering pipeline and compressor stations with 4.8 Bcf/d of compression capacity (added 0.2 Bcf/d in 2025). Fees are charged per Mcf for low-pressure gathering, high-pressure gathering and compression, subject to annual CPI adjustments, with minimum volume commitments on certain new high-pressure and compression construction.
Processing facilities
Multiple effective dates
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Utica Shale Midstream Assets
Asset · Gathering System · Operating
Project information
As at 31 December 2025
Description
As at 31 December 2025
Utica Shale midstream assets in Ohio comprising 118 miles of gathering pipelines, 0.7 Bcfe/d of compression capacity, 85 miles of water pipelines and 12 water impoundments with storage capacity of approximately 2 million barrels. Pending divestiture: on December 5, 2025 the company agreed to sell substantially all of these assets to two third-party buyers for aggregate cash consideration of $400 million, expected to close in February 2026; the assets were still held at the December 31, 2025 reporting date.
Processing facilities
As at 31 December 2025
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Appalachian Basin Water Handling
Asset · Water Handling · Operating
Project information
As at 31 December 2025
Description
As at 31 December 2025
Two independent water handling systems delivering fresh water from sources including the Ohio River, local reservoirs and regional waterways, and transporting flowback and produced water. Comprises 236 miles of buried water pipeline, 187 miles of surface water pipeline, pumping stations, blending facilities and impoundments. A fixed fee per barrel is charged for fresh water deliveries (no minimum volume commitments), subject to annual CPI adjustments; the Clearwater treatment facility has been idled since 2019.
Processing facilities
Multiple effective dates
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MarkWest Processing & Fractionation Joint Venture
Asset · Gas Processing · Operating · Ownership 50%
Project information
As at 31 December 2025
Description
As at 31 December 2025
50% interest in a processing and fractionation joint venture formed in February 2017 with MarkWest (a subsidiary of MPLX), which operates the assets and provides gas processing and NGL fractionation services on Antero Resources acreage in Appalachia. 2025 processing throughput averaged 1,687 MMcf/d and fractionation 40 MBbl/d.
Processing facilities
Multiple effective dates
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Stonewall Gas Gathering
Asset · Pipeline Gas · Operating · Ownership 15%
Project information
As at 31 December 2025
Description
As at 31 December 2025
Interest in the Stonewall high-pressure gas gathering system in West Virginia, which provides takeaway connectivity for Appalachian Basin natural gas to downstream interstate pipelines.
Processing facilities
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Assumptions
- The projects listed here reflect the information captured in this workspace and are not necessarily a complete picture of the company's portfolio. For authoritative figures, refer to the company's official filings.
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How to read this tab
- The tables below list unit codes most often used in the Oil & Gas sector for this company. MetalPilot stores contained metal or product in the codes below; grade and tonnage use separate fields. In side-by-side comparison views (stock page Portfolio tab, watchlist By sector), heterogeneous source units are converted to each commodity's preferred display unit (for example Moz Au, kt Cu, MMbbl oil) before summing; the same canonical codes appear in project data.
What the Portfolio tab shows
- The Portfolio tab presents a project-level view of the company's reported assets, built from publicly disclosed information (technical reports, annual filings, MD&A, investor presentations, MRMR / R&R statements, NI 43-101 / NI 51-101 / SEC S-K 1300 / SEC S-K 1200 / JORC / SAMREC / PERC / PRMS / COGEH filings, and similar primary sources).
- Figures are grouped by project type (mining, oil & gas, royalty, stream, processing facility, development, portfolio aggregate) and are shown alongside the headline reserve base, headline production, headline grade / quality, cost benchmarks, estimated lifetime, commercial terms (for royalties / streams), operational capacity (for processing) and a single-figure rating where the underlying data supports one.
- Each data table on the Portfolio tab is followed by ONE Assumptions footnote describing the modelling choices for that table; KPI stat-card assumptions appear in the bottom block instead. All legal and section disclaimers are merged into a single disclaimer list at the bottom of the Portfolio tab.
Concepts in your sector — Oil & gas
- 1P/2P/3P — cumulative uncertainty. 1P = Proved (≥90%); 2P = Proved+Probable (≥50%, primary non-SEC metric); 3P adds Possible (≥10%). SEC filers often publish 1P only.
- Contingent (1C/2C/3C) = discovered, sub-commercial. Prospective (1U/2U/3U) = undiscovered. Neither feeds economic models without further work.
- Developed vs Undeveloped: PDP (producing), PDNP (developed non-producing), PUD (undeveloped). Reserves walk PUD→PDP is reclassification, not new discovery.
- BOE uses 6 Mcf gas : 1 bbl oil (thermal, not economic). Some issuers use 5.8:1 — read footnotes.
- Pricing case: Forecast vs Constant (NI 51-101/PRMS) or SEC 12-month average. Do not add cases together.
Portfolio tab — table guide
- Portfolio KPIs — company-level headline numbers aggregated from the featured projects (project counts, attributable annual production by commodity, attributable resource base by commodity, last filing date, operator share). USD value lines multiply attributable volumes by the resolved snapshot price.
- Portfolio snapshot — one-screen summary of the portfolio: counts by type and status, country mix, reporting standards used, operator share, primary commodity, attributable annual production summary and attributable resource base summary.
- Oil & Gas — one row per O&G project (typically a field, licence, play or basin asset), with columns for location, status, primary hydrocarbons, production (with rating), reserves & resources (with rating), costs and estimated lifetime.
- Royalty — one row per royalty interest held by the company. Columns cover the underlying project, operator, commodity, commercial terms (rate, type, cap, area-of-interest), attributable production, attributable reserves and estimated lifetime.
- Stream — one row per metal stream held by the company. Each row shows the underlying project, the streamed commodity, the headline stream percentage, the ongoing per-ounce / per-tonne payment, and attributable production / reserves.
- Processing facilities — one row per midstream / processing facility (pipeline, fractionator, LNG train, storage cavern, refinery, smelter, mill, heap-leach pad, CPP, etc.). Columns include nameplate capacity, contracted capacity, feedstock commodities and operational footprint.
- Development — projects in development status or in a pre-production lifecycle phase. The production column is re-labelled 'Targeted production (rating)' to highlight that the figures are plans, not actuals.
- Portfolio Aggregate — a single company-level row used when the company itself publishes a portfolio rollup (e.g. company-wide 2P barrels across all properties).
- Reserves & resources — detail — a leaf-category pivot showing every reserve and resource category disclosed across the projects.
- Reserves walk — gross (disclosed) — year-by-year reconciliation of the opening balance to the closing balance, broken into Extensions & discoveries, Revisions, Improved recovery, Purchases, Divestitures, Production and Conversion to developed.
- Reserves walk — net change by year — per-year summary of net additions and net deductions across the portfolio.
- NPV (grouped) — all NPV rows captured from the filings, grouped by commodity, resource category, development status and pricing case. Each NPV figure is shown with its discount rate, basis (before-tax / after-tax), currency and value scale.
Ownership / Working interest
- Ownership percentage means the company's working-interest share of the asset: its slice of the project before royalties and before government take. It is shown on a 0–100 scale.
- Mines, oil and gas fields, and processing facilities — this is how much of the asset belongs to the company under that working-interest idea. One hundred percent is fully owned; a lower number usually means partners share the rest.
- Royalties and streaming agreements — the percentage is often not the story; what matters economically is usually the royalty or stream rate, shown elsewhere alongside these figures.
- Oil and gas — read this as gross working interest only. Do not treat it as net production or net wells after royalties; when filings distinguish gross from net, that shows up in how the resource numbers themselves are labelled.
- Below 100% — the short summary for each project names other owners and their stakes when the source says who they are.
- NRI vs WI (O&G). Working interest (WI) is the obligation to pay a share of costs; net revenue interest (NRI) is the share of revenue after royalties and overriding-royalty interests. A 100% WI well rarely produces 100% NRI; typical onshore U.S. NRI is 75–87.5% of WI depending on the lease royalty.
- Operator vs non-operator. The operator runs day-to-day operations; non-operating partners pay their WI share of costs but do not run the asset. Some Portfolio rows show operator share where disclosed.
Hydrocarbon commodity — notes
- The Commodity column shows normalized labels; values are stored as snake_case CommodityCode strings in pkg/domain and project resource rows (for example shale_gas, oil_equivalent).
- Benchmarks and typical relationship cells are informal market context for reading disclosures — they are not MetalPilot price inputs.
Crude grade primer
- API gravity — lower = heavier. Light crude is ≥ 31.1° API (≤ 870 kg/m³); heavy is 22.3–31.1° API; extra-heavy is < 22.3°. Bitumen is ≤ 10° API.
- Sulphur — sweet vs sour. Sweet crude has ≤ 0.5% sulphur; sour > 0.5%. Refineries price the discount on sour crude into the differential.
- WTI vs Brent vs WCS. WTI (West Texas Intermediate, Cushing OK) is the U.S. light-sweet benchmark; Brent (North Sea) is the global light-sweet benchmark; WCS (Western Canadian Select) is the heavy/sour benchmark for Canadian production.
Unit codes, conversion cheat sheets, cost benchmarks (AISC, C1–C3), reporting standards (NI 43-101, JORC, SEC S-K 1300) and resource/reserve category definitions live in the full terminology & units reference.
Each table lists the numeric band for scores 1–5 (production and resource base; grade where applicable for mining commodities) using the same thresholds as project rating stat cards. Only commodities that appear on featured projects for this document are listed.
Natural gas
NGL
Copper uses kt Cu bands (Mlb Cu when lb-scale copper resources appear on featured projects). Lithium grade uses hard-rock % Li₂O bands unless brine-style extraction or brine units appear on featured projects.
Assumptions
- Presented values are denominated in currency of the country where the company is headquartered. Values like market capitalization might differ from the values visible in other parts of the page, where the currency is always USD.
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