Hormuz Tape Meets Chevron: Berkshire's 7.24% Conviction Position

The Strait of Hormuz tape is still in motion. Tanker insurance premiums are repricing, Brent and WTI both caught a bid on this week's headlines, and the institutional energy bid is broad but unevenly concentrated. Yesterday we covered Exxon Mobil's holder structure under the same macro event. Today the question is who is positioned in Chevron — the second-largest US oil major — and what conviction signal that book carries. The answer is one of the cleanest in the US institutional universe: Berkshire Hathaway holds CVX at $19.84 billion, or 7.24% of Berkshire's entire $274 billion 13F portfolio. Behind Berkshire, Fisher Asset Management at $4.53 billion and 1.54% portfolio is the only other active holder running a meaningful overweight. Together they define the conviction layer on Chevron.

This is a different story than the Exxon read. XOM's largest active conviction sits at Franklin Resources at 1.72% portfolio — a 60% overweight versus index. Chevron's largest conviction is a single legacy Buffett position at 7.24% portfolio — a structural concentration call that has been in place across multiple oil-price cycles. The Hormuz event is testing Buffett's energy thesis directly.

What Hormuz means for Chevron specifically

Chevron's revenue base differs from Exxon's in important ways. Chevron has a heavier upstream weighting (lifting cost economics in the Permian and offshore Gulf of Mexico), a smaller refining footprint than Exxon's, and a major LNG project pipeline through Australia and the eastern Mediterranean. Sustained Brent backwardation would benefit Chevron more from upstream margin expansion and less from refining-margin tailwinds than Exxon.

The cash-flow conversion is what matters for institutional shareholders. Chevron returns capital through a roughly 4% dividend yield and an active buyback program. Higher Brent prices flow directly into both lines. A $10 Brent move sustained over four quarters adds roughly $5-7 billion of free cash flow at current production levels — meaningful against a $290+ billion market cap.

The 7.24% Berkshire position

Berkshire Hathaway has held Chevron as a top-10 position since 2020, when Buffett's team built the position rapidly through the post-COVID oil collapse. The thesis was a simple one: energy super-majors with high-grade balance sheets, dividend safety, and meaningful free-cash-flow generation were trading at multi-decade-low multiples. Berkshire scaled into both CVX and Occidental Petroleum (a separate position) over 2021-2023, then trimmed marginally as oil prices recovered.

The Q1 2026 reported position:

• $19.84 billion at the March 31, 2026 closing price
• 7.24% of Berkshire's $274 billion 13F portfolio
• Approximately 121 million shares (the exact share count varies marginally quarter-over-quarter as Berkshire trims or adds)

The Q4 2025 position was at a higher absolute dollar value (price-driven) but very similar share count. Berkshire's position management on CVX has been minor adjustment rather than directional repositioning over the past 18 months — the firm appears to view the energy thesis as a multi-year hold.

The other active conviction: Fisher Asset Management

Fisher Asset Management, LLC holds Chevron at $4.53 billion and 1.54% portfolio weight. Fisher is the personal-account asset-management arm of Ken Fisher, and the firm runs concentrated active equity with deep value tilts. A 1.54% portfolio weight on CVX against an S&P 500 index weight of approximately 0.65% is a 2.4x overweight — meaningful active discretion beyond passive benchmarks.

Fisher's overweight has been in place for multiple quarters. The position size suggests Fisher views CVX as a yield-and-value pair trade similar to (but smaller than) Berkshire's. The 2.4x overweight is large enough to express directional conviction without being structurally constrained the way Berkshire's 11x index overweight is.

The passive layer

Most of Chevron's institutional ownership is passive index inventory:

• BlackRock: $29.94 billion, 0.52% portfolio — near-index weight.
• Vanguard Capital Management: $25.34 billion, 0.63%.
• State Street: $23.21 billion, 0.78%.
• Vanguard Portfolio Management: $8.75 billion, 0.46%.
• Geode Capital (passive_index): $6.62 billion, 0.41%.
• Charles Schwab Investment Management (passive_index): $5.49 billion, 0.85%.

Active managers running CVX at meaningful overweight beyond Berkshire and Fisher are scarce. Morgan Stanley at 0.33% portfolio, JPMorgan Chase at 0.28% portfolio — these are roughly index weights or slight underweights for a name with a 0.65% S&P weight. The conviction layer is concentrated at the top two names.

What concentrated conviction tells you

When a single investor holds 7.24% of their portfolio in one stock and only one other meaningful active overweight exists, the macro thesis driving the position becomes the central question. For Berkshire's CVX:

1. The thesis is multi-year energy super-major valuation discipline. Buffett's team built the position when CVX was at multi-decade-low forward earnings multiples. Even after the recovery, CVX trades below the broader market multiple — the value case persists.
2. The dividend yield + buyback support the position. Chevron's roughly 4% dividend yield plus the active buyback represents an after-tax shareholder return that Berkshire's team finds attractive against most other large-cap alternatives.
3. The Hormuz event is the kind of macro catalyst the position is built for. Sustained backwardation in Brent translates directly into Chevron's free-cash-flow profile, which Berkshire converts into either further share repurchases or capital reallocation.

What to track

1. Brent forward curve. Watch for deeper backwardation through Q3 2026 as the cleanest signal that the Hormuz tension is being priced as durable supply disruption.
2. Berkshire Q2 2026 13F (due August 14, 2026). Whether Berkshire adds to or trims CVX during the macro window will be the cleanest read on the firm's view of the durability. The position is large enough that even modest trims signal a view shift.
3. Chevron Q2 2026 earnings (early August). Capital allocation and free-cash-flow generation will determine whether the price action sustains. Watch the upstream production data closely.
4. Fisher Asset Management's quarterly filing. Whether Fisher's 1.54% portfolio weight grows or trims is the cleanest non-Berkshire active signal.

Chevron's holder book has a structurally different conviction shape than Exxon's. The Berkshire position is the single largest individual energy bet in the US institutional universe by portfolio weight. The Hormuz event is the test of whether that conviction continues to pay. For more on identifying single-investor concentration in 13F holder books, see our explainer hub, and track active-manager flow into energy via the institutional signals feed.

Source: SEC Form 13F-HR filings for Q1 2026 period ending 2026-03-31, accession listings at Chevron Corp SEC filer index and Berkshire Hathaway filer index.