Key Highlights

  • The board doubled the buyback authorization to $16 billion on July 30; about $9.9 billion remained as of July 31.
  • Major holder SGF FANG Holdings sold 9.08 million shares at $205.26 on Sep 16, and the stock fell about 7.7% the next session; it closed at $184.50 on Sep 22.
  • Q2 production reached 1,018 MBOE/d with $2.33 billion of free cash flow, and 2026 production guidance was raised to 1,000+ MBOE/d.
  • Cash operating costs were $10.96 per BOE in the second quarter, and Stifel resumed coverage with a Buy rating and a $259 price target, above the Sep 22 close of $184.50.

Diamondback Energy (NASDAQ:FANG) has lost ground in September even though its board doubled the company's share repurchase authorization to $16 billion from $8 billion in late July. The Permian Basin producer closed at $184.50 on Sep 22, down 2.5% on the day, well below the $205.26 per share at which its largest outside Shareholder sold a large block of stock a week earlier.

Two pressures appear to be weighing on the shares. First, SGF FANG Holdings, the Investment vehicle associated with Lyndal Stephens Greth, sold 9,079,675 Diamondback shares on Sep 16 at $205.26 each, or roughly $1.9 billion, according to Form 4 and Schedule 13D/A filings. The stock fell 7.7% to $195.30 in the session that followed. Second, crude prices have eased from recent highs; oil slipped back below $100 a barrel on stronger-than-expected flows and news of diplomacy involving Iran.

The Sep 22 decline itself did not come with a clearly identifiable company-specific announcement, and it is difficult to attribute a single day's move to one cause. However, the combination of a large holder reducing its stake and a softer oil tape helps explain why a bigger buyback has not been enough to lift the stock.

Why the Block Sale Matters

SGF FANG Holdings became a major Diamondback shareholder through the Stephens family's sale of Endeavor Energy Resources to the company. After the Sep 16 sale, the holder retained about 65 million shares, or roughly 23.2% of the company, and agreed to a 30-day lock-up. Diamondback had previously agreed, in late 2025, to repurchase shares directly from the same holder under a structured arrangement intended to manage the overhang.

For investors, the concern is less about the sale price, which was above the current share price, than about supply. A holder with nearly a quarter of the company can sell again once the lock-up expires, and that possibility can cap enthusiasm even when fundamentals are strong. The flip side is that Diamondback's large authorization gives it capacity to absorb shares if it chooses to.

Record Production and $2.3 Billion of Free Cash Flow

Fundamentals in the Aug 3 second-quarter report were strong. Diamondback said production averaged 1,018 thousand barrels of oil equivalent per day, crossing the 1 million BOE per day milestone for the first time, with oil output of 525,000 barrels per day. Net Income attributable to the company was $1.88 billion, or $6.65 per diluted share, and adjusted net income was $6.48 per share. Free Cash Flow reached $2.33 billion on cash Capital spending of $996 million.

Realized prices surged. Oil averaged $96.82 a barrel before hedges, up from $63.23 a year earlier, while realized Natural Gas prices were negative at minus $2.15 per thousand cubic feet, reflecting weak local gas pricing in West Texas. The company cut total Debt by about $1.3 billion during the quarter to $12.8 billion, and net debt fell to $12.3 billion.

Guidance Raised, Capital Budget Unchanged

Diamondback raised its full-year production guidance to 1,000-plus MBOE per day from 972-plus, and oil guidance to 522-plus thousand barrels per day from 520-plus, while keeping its 2026 cash capital budget at about $3.9 billion. For the third quarter, it guided to oil output of 517,000 to 527,000 barrels per day and capital spending of $950 million to $1.05 billion. Third-quarter oil guidance came in slightly below consensus.

On capital returns, the company declared a base Dividend of $1.10 per share and repurchased 756,385 shares for about $141 million in the second quarter at an average of $186.63. It bought back a further $100 million of stock early in the third quarter. About $9.9 billion remained under the enlarged authorization as of July 31. Management has said it intends to buy shares opportunistically using cash on hand, free cash flow and potential asset sale proceeds.

Where Diamondback Sits in the Permian

Diamondback is one of the largest independent producers in the Permian Basin, competing with EOG Resources (NYSE:EOG), Devon Energy (NYSE:DVN), Occidental Petroleum (NYSE:OXY) and the Permian operations of Exxon Mobil (NYSE:XOM) and Chevron (NYSE:CVX). Stifel (NYSE:SF), which resumed coverage with a Buy rating and a $259 target in September, pointed to peer-leading cost structures; cash operating costs were $10.96 per BOE in the second quarter. The company is also a partner, with WhiteWater, Devon, MPLX (NYSE:MPLX) and Western Midstream (NYSE:WES), in the Solitude pipeline project, which reached a final investment decision on Aug 17 to carry Permian gas to the Gulf Coast, a potential help for weak local gas prices.

Wall Street views are mixed. Across 31 analysts, the average rating is Buy with a mean target of $234.38. Recent moves include Raymond James (NYSE:RJF) raising its target to $255 with a Strong Buy rating and UBS (NYSE:UBS) lifting its target to $253, while Morgan Stanley (NYSE:MS) downgraded the stock to Equal Weight in August, citing an in-line valuation.

Risks on the Radar

  • Oil price sensitivity: Second-quarter results benefited from crude near $97. A sustained easing of geopolitical tensions around the Strait of Hormuz could lower realized prices and cash flow.
  • Shareholder overhang: SGF FANG Holdings still owns about 23% of the company, and further sales are possible after the lock-up.
  • Gas takeaway: Negative realized gas prices highlight dependence on new pipeline capacity.
  • Debt and hedges: Net debt of $12.3 billion remains sizeable, and the hedge book mainly provides downside protection rather than locking in high prices.
  • Regulation: The company flags water-disposal restrictions in the Permian as an operating risk.

The Lock-Up Expiry and Next Production Update

Diamondback's third-quarter report is expected around Nov 2, though the company has not yet confirmed a date. Investors will be watching whether production holds above 1 million BOE per day, the pace of Buybacks under the $16 billion authorization, further debt reduction, and any update on 2027 plans.

The expiry of the 30-day lock-up in mid-October, oil prices and developments around the Strait of Hormuz are also likely to shape sentiment in the near term.