Deal Timeline

Plotted by close date where disclosed, otherwise announcement. Select any marker to jump to the deal entry.

The Acquisition Playbook.

Three patterns run through Diamondback Energy's acquisitions — what it looks for, how it pays, and how it folds in what it buys.

01
Acquisition criteria
Permian pure-play consolidation.
Diamondback has grown almost entirely by buying acreage and operators inside one basin — the Permian of West Texas — rather than diversifying. From its 2016 Brigham Resources entry into the Delaware Basin through the ~$26 billion Endeavor merger, nearly every deal added contiguous Midland or Delaware acreage that management insists must 'compete for capital right away' in the existing portfolio.
Endeavor Energy Resources, L.P.Sitio Royalties Corp. (acquired by Viper Energy)Double Eagle IV (DE Permian, LLC and affiliates)Energen CorporationQEP Resources
02
Capital deployment
Stock-funded scale, cash-funded bolt-ons.
The transformational mergers — Energen, QEP and Endeavor — were largely or entirely stock, protecting the balance sheet and preserving investment-grade status, while smaller acreage tuck-ins such as Ajax, ExL/EnergyQuest, FireBird, Guidon and Lario used a cash-heavy mix. Diamondback repeatedly paired those deals with explicit commitments to sell non-core assets and cut debt.
Endeavor Energy Resources, L.P.Sitio Royalties Corp. (acquired by Viper Energy)Double Eagle IV (DE Permian, LLC and affiliates)Energen CorporationQEP Resources
03
Integration approach
Inventory depth and adjacency over headline price.
Management's recurring test is whether an asset 'checks every box' — top-quartile drilling inventory that is immediately accretive, with adjacency that enables longer laterals and infrastructure synergies. Alongside the E&P deals, Diamondback built a minerals franchise in subsidiary Viper Energy that separately consolidated Permian royalties (GRP, Tumbleweed, and the ~$4.1B Sitio merger).
Endeavor Energy Resources, L.P.Sitio Royalties Corp. (acquired by Viper Energy)Double Eagle IV (DE Permian, LLC and affiliates)Energen CorporationQEP Resources

The Full Deal Book

13 acquisitions — each with the deal value, financing structure, target revenue, and executive commentary where disclosed.

01 Endeavor Energy Resources, L.P. · Permian Basin, West Texas (Midland-headquartered) $26B
Announced Feb 2024 Closed Sep 2024 Cash-and-stock
Contiguous Midland Basin acreage~6100 sub-$40 WTI breakeven drilling locationslow-cost operating platformin-basin scale

Diamondback's largest acquisition and the deal that reshaped the Permian. Diamondback merged with Endeavor Energy Resources, the largest privately held oil producer in the Permian Basin, founded by Autry Stephens in 1979. The transaction added roughly 500,849 gross (361,927 net) acres primarily in the Midland Basin and created a combined company with about 838,000 net acres and roughly 816 MBOE/d of net production. Final consideration was $7.3 billion in cash plus approximately 117.27 million Diamondback shares. ~$26 billion (enterprise value, inclusive of Endeavor's net debt).

Why it was attractive
  • Adjacent
  • contiguous Midland Basin acreage enabling longer laterals and infrastructure overlap
  • ~6
  • 100 combined locations with breakevens below $40 WTI
This is a combination of two strong, established companies merging to create a 'must own' North American independent oil company. The combined company's inventory will have industry-leading depth and quality that will be converted into cash flow with the industry's lowest cost structure.Travis Stice — Chairman & CEO, Diamondback Energy
I am grateful to the Endeavor team and proud of what we have built since 1979. We believe Diamondback is the right partner for Endeavor, our employees, families and communities.Autry C. Stephens — Founder & Chairman, Endeavor Energy Resources
02 Sitio Royalties Corp. (acquired by Viper Energy) · Permian Basin, plus DJ, Eagle Ford and Williston basins $4.1B
Announced Jun 2025 Closed Aug 2025 All-stock
Permian-concentrated mineral and royalty acreageroyalty cash flow with no capital or operating cost burden

Diamondback's minerals subsidiary Viper Energy acquired Sitio Royalties in an all-equity merger, consolidating two of the largest public mineral-and-royalty owners. The interests acquired represent roughly 25,300 net royalty acres in the Permian plus about 9,000 net royalty acres in the DJ, Eagle Ford and Williston basins. As Viper's controlling stockholder, Diamondback approved the deal by written consent. ~$4.1 billion (all-equity, including ~$1.1 billion of Sitio net debt).

Why it was attractive
  • ~34
  • 300 net royalty acres total
  • heavily weighted to the Permian and to Diamondback-operated units
03 Double Eagle IV (DE Permian, LLC and affiliates) · Core Midland Basin, West Texas $4.08B
Announced Feb 2025 Closed Apr 2025 Cash-and-stock
Core Midland Basin inventorylateral-length extensions from acreage overlaprun-rate production ~27 MBo/d

Diamondback acquired subsidiaries of Double Eagle IV Midco, adding roughly 40,000 net acres in the core of the Midland Basin with about 407 gross (342 net) undeveloped horizontal locations. The deal was announced with ~$3 billion cash and ~6.9 million shares and closed at $3.1 billion cash plus ~6.84 million shares. Diamondback also committed to sell at least $1.5 billion of non-core assets to fund debt reduction. ~$4.08 billion ($3.1 billion cash + ~6.84 million Diamondback shares).

Why it was attractive
  • ~40
  • 000 core Midland net acres
  • 68% undeveloped
  • overlap enabling longer laterals
  • valued ~5.2x 2025 EBITDA
Double Eagle is the most attractive asset remaining in the Midland Basin. With 407 locations adjacent to our core position, this largely undeveloped asset adds high-quality inventory that immediately competes for capital.Travis Stice — Chairman & CEO, Diamondback Energy
We believe our team has built a truly standout asset that further increases Diamondback's high-quality inventory. It was important to us that we maintain the stewardship of this asset going forward with a world-class Midland operator.Cody Campbell & John Sellers — Co-CEOs, Double Eagle
04 Energen Corporation · Permian Basin (Midland & Delaware); Energen headquartered in Birmingham, Alabama $9.2B
Announced Aug 2018 Closed Nov 2018 All-stock
Tier One Midland and Delaware Basin acreage~7000 net horizontal locationsmidstream assetsmineral ownership feeding Viper

Diamondback merged with Alabama-based Energen Corporation in an all-stock deal that management called the creation of the premier large-cap Permian independent. Each Energen share converted into 0.6442 Diamondback shares (implied ~$84.95 per share); Diamondback issued ~62.8 million shares valued at ~$7.1 billion in equity. The combination pushed Diamondback to ~390,000 net acres across the Midland and Delaware basins. ~$9.2 billion (all-stock, including ~$830 million Energen net debt).

Why it was attractive
  • Added 266
  • 000+ net Tier One Permian acres (+57%) and 7
  • 000+ net horizontal locations
  • combined production 222+ MBOE/d
This transaction represents a transformational moment for both Diamondback and Energen shareholders as they are set to benefit from owning the premier large cap Permian independent with industry leading production growth, operating efficiency, margins and capital productivity.Travis Stice — Chairman & CEO, Diamondback Energy
05 QEP Resources, Inc. · Midland Basin (core); Williston Basin (non-core, later divested) $2.2B
Announced Dec 2020 Closed Mar 2021 All-stock
Tier-1 Midland Basin acreage held by productionadjacent Permian midstream infrastructure

Diamondback acquired QEP Resources in an all-stock merger, with each QEP share converting into 0.050 of a Diamondback share (implied ~$2.29 per QEP share). The deal added roughly 49,000 net Midland Basin acres held by production. QEP's non-core Williston Basin assets were designated for divestiture and sold in October 2021. Equity consideration was ~$987 million; enterprise value ~$2.2 billion including assumed debt. ~$2.2 billion (all-stock, including ~$1.6 billion QEP net debt).

Why it was attractive
  • ~49
  • 000 net Midland acres held by production
  • Q3 2020 production 48.3 MBO/d
  • adjacency enabling longer laterals
The acquisition of QEP also checks every box of Diamondback's corporate development strategy... the addition of this Tier-1 resource competes for capital right away in Diamondback's current portfolio, and we will now be able to allocate most of our capital to the high-returning Midland Basin.Travis Stice — CEO, Diamondback Energy
06 Guidon Operating LLC · Northern Midland Basin, West Texas $1.12B
Announced Dec 2020 Closed Feb 2021 Cash-and-stock
Held-by-production Northern Midland Basin acreage~395 gross horizontal locationslong laterals (>10500 ft)

Announced the same day as the QEP merger, Diamondback acquired the leasehold and related assets of Guidon Operating LLC, adding about 32,500 net acres in the Northern Midland Basin and roughly 210 gross producing wells. Consideration was 10.68 million Diamondback shares (~$740 million at closing) plus $375 million cash. ~$1.12 billion (10.68 million shares [~$740M] + $375 million cash).

Why it was attractive
  • ~32
  • 500 net acres
  • 95% operated
  • top-quartile inventory adjacent to existing position
The acquisition of these assets from Guidon checks every box of Diamondback's corporate development strategy... Diamondback will not only get bigger through this transaction, but most importantly better.Travis Stice — CEO, Diamondback Energy
07 FireBird Energy LLC · Midland Basin, West Texas $1.66B
Announced Oct 2022 Closed Nov 2022 Cash-and-stock
Contiguous Midland Basin acreage~353 gross horizontal locationslong laterals (~11400 ft)

Diamondback acquired the leasehold and related assets of FireBird Energy, adding roughly 75,000 gross (68,000 net) highly contiguous Midland Basin acres and about 854 gross producing wells. Announced at 5.86 million shares plus $775 million cash; closed at 5.92 million shares (~$876 million) plus $787 million cash. ~$1.66 billion (5.92 million shares [~$876M] + $787 million cash).

Why it was attractive
  • ~68
  • 000 contiguous net acres
  • 98.5% operated
  • valued ~3x 2023 EBITDA with 15% FCF yield
This bolt-on acquisition adds significant, high-quality inventory right in our backyard. With over 350 locations adjacent to our current Midland Basin position, this asset adds more than a decade of inventory at our anticipated development pace.Travis Stice — Chairman & CEO, Diamondback Energy
08 Lario Permian, LLC (Lario Oil & Gas Company) · Midland Basin, West Texas $1.45B
Announced Jan 2023 Closed Jan 2023 Cash-and-stock
Midland Basin leasehold and related oil & gas assets adjacent to Diamondback's core position

Diamondback acquired the leasehold and related assets of Lario Permian, a subsidiary of Lario Oil & Gas Company, and certain associated sellers, adding roughly 25,000 gross (16,000 net) Midland Basin acres. Consideration was 4.33 million Diamondback shares (~$633 million) plus $814 million cash, with ~$113 million of the cash placed in an indemnity holdback escrow. ~$1.45 billion (4.33 million shares [~$633M] + $814 million cash).

Why it was attractive
  • ~16
  • 000 net Midland acres contiguous with Diamondback's development footprint
09 Ajax Resources, LLC · Northern Midland Basin, West Texas $1.25B
Announced Aug 2018 Closed Oct 2018 Cash-and-stock
Northern Midland Basin leasehold contiguous with Diamondback's Howard/Martin county position

Diamondback acquired the leasehold and related assets of Ajax Resources, adding approximately 25,493 net leasehold acres in the Northern Midland Basin. Consideration was $900 million cash plus about 2.58 million Diamondback shares (roughly 0.5 million placed in an indemnity escrow). Announced alongside Q2 2018 results and effective July 1, 2018. ~$1.25 billion ($900 million cash + 2.58 million Diamondback shares).

Why it was attractive
  • ~25
  • 493 net acres extending the core Midland position
10 Brigham Resources (Operating & Midstream, LLC) · Southern Delaware Basin (Pecos & Reeves counties), West Texas $2.43B
Announced Dec 2016 Closed Feb 2017 Cash-and-stock
Delaware Basin leasehold1213 net horizontal locations across four proven zonesexisting production and midstream

Diamondback acquired the leasehold and related assets of Brigham Resources Operating and Brigham Resources Midstream, adding 76,319 net acres in Pecos and Reeves counties in the Southern Delaware Basin and bringing total leasehold to ~182,000 net Permian acres. Consideration was $1.62 billion cash plus 7.69 million Diamondback shares (~$809.6 million). The Brigham sellers were backed by Warburg Pincus, Yorktown and Pine Brook. ~$2.43 billion ($1.62 billion cash + 7.69 million shares [~$809.6M]).

Why it was attractive
  • 76
  • 319 net Delaware acres
  • ~9
  • 500 boe/d production (77% oil)
  • 1
  • 213 net locations
  • ~83% operated
Diamondback's pending acquisition of Brigham Resources in the Delaware Basin represents an important milestone for our company... we are creating exceptional shareholder value by doubling our Tier One inventory at an attractive entry price.Travis Stice — CEO, Diamondback Energy
This transaction represents a unique opportunity to place our Southern Delaware Basin assets in the hands of one of the premier value creators and operators in the Permian Basin.Gene Shepherd — CEO, Brigham Resources
11 ExL Petroleum & EnergyQuest II, LLC · Northwest Martin & Northeast Andrews counties, Northern Midland Basin $312.5M
Announced Sep 2018 Closed Oct 2018 All cash
Northern Midland Basin leasehold contiguous with the Ajax and legacy positions

Under two definitive purchase agreements, Diamondback acquired leasehold and related assets from ExL Petroleum Management/ExL Petroleum Operating and from EnergyQuest II, together about 3,646 net leasehold acres and ~3,500 boe/d of production in Northwest Martin and Northeast Andrews counties of the Northern Midland Basin, for an aggregate $312.5 million in cash. $312.5 million cash (aggregate, two agreements).

Why it was attractive
  • ~3
  • 646 net acres and ~3
  • 500 boe/d bolted onto the core position
12 GRP mineral interests (Warwick/GRP, acquired by Viper Energy) · Permian Basin (4,600 net royalty acres) plus 2,700 net royalty acres in other basins $1.0B
Announced Nov 2023 Closed Nov 2023 Cash-and-units
Permian-weighted mineral and royalty acreage generating cost-free cash flow

Diamondback's minerals subsidiary Viper Energy acquired mineral and royalty interests from Royalty Asset Holdings and affiliates of Warwick Capital Partners and GRP Energy Capital, representing about 4,600 net royalty acres in the Permian plus 2,700 net royalty acres in other basins. Consideration was ~9.02 million Viper common units plus $760 million cash. ~$1.0 billion (9.02 million Viper units + $760 million cash).

Why it was attractive
  • 7
  • 300 net royalty acres
  • Permian-weighted
  • no capital/operating cost burden
13 Tumbleweed Royalty IV / TWR (acquired by Viper Energy) · Permian Basin $650M
Announced Oct 2024 Closed Oct 2024 Cash-and-units
Permian mineral and royalty acreage feeding Viper's cost-free royalty cash flow

As part of the September-October 2024 'Viper Tumbleweed Acquisitions,' Viper Energy acquired the equity of TWR IV, LLC and related entities from Tumbleweed Royalty IV, adding roughly 3,067 net royalty acres primarily in the Permian Basin. The headline TWR IV component was ~$464 million cash plus 10.09 million Viper LLC units, an option for additional Class B shares, and contingent consideration of up to $41 million tied to 2025 WTI prices. ~$650 million (~$464 million cash + 10.09 million Viper LLC units + contingent up to $41M).

Why it was attractive
  • ~3
  • 067 net royalty acres
  • Permian-concentrated

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