Berkshire requires a 25–50% discount to intrinsic value before buying.
Buffett Quality Checklist
✗ROE >15% consistently (≥7 of last 10 years)
✗Free cash flow positive (≥8 of last 10 years)
✓Conservative leverage — Debt/Equity below 1
✓Revenue growing at CAGR >5%
✓EPS growing at CAGR >5%
10-Year Financial History — SEC EDGAR 10-K Filings
Year▲
Revenue▲
Net Income▲
FCF▲
Owner Earnings▲
ROE▲
Net Margin▲
LT Debt▲
Cash▲
2016
$7.7B
-$1.1B
—
—
-7.8%
-14.3%
$7.0B
$1.6B
2017
$11.2B
$2.6B
—
—
15.9%
23.0%
$6.0B
$834.2M
2018
$17.3B
$3.4B
—
—
17.7%
19.8%
$5.2B
$1.6B
2019
$17.4B
$2.7B
—
—
12.6%
15.7%
$4.2B
$2.0B
2020
$11.0B
-$605.0M
—
—
-3.0%
-5.5%
$5.0B
$3.3B
2021
$18.6B
$4.7B
—
—
21.0%
25.0%
$5.1B
$5.2B
2022
$25.7B
$7.8B
—
—
31.3%
30.2%
$3.8B
$6.0B
2023
$24.2B
$7.6B
—
—
27.0%
31.4%
$3.8B
$5.3B
2024
$23.7B
$6.4B
—
—
21.8%
27.0%
$4.2B
$7.1B
2025
$22.6B
$5.0B
—
—
16.7%
22.0%
$7.9B
$3.4B
Warren & Charlie
Buffett / Munger — quality, moat & valuation
EOG RESOURCES INC (EOG) — Investment Memo
🐂 The Bull Case (Warren's voice)
If we are to own a commodity producer, it must be the undisputed low-cost operator.
Efficiency as a Moat: In a world where EOG cannot control the price of a barrel, they control the only thing that matters: the cost to pull it out of the ground. Their technological superiority in the Permian and Eagle Ford basins allows them to remain profitable when others are bleeding cash.
The "Great Transition" Hedge: The world remains addicted to hydrocarbons. Until the grid is truly revolutionized, EOG serves as a utility-like provider of essential energy, generating massive cash flows that can be harvested and deployed elsewhere.
Capital Discipline: EOG has historically shown better restraint than their "drill-baby-drill" peers. When they focus on high-return wells rather than volume for volume's sake, they act more like a business owner and less like a gambler.
The Ideal Price: We would only participate if the market panic prices them at a level where the dividend yield and intrinsic value yield a "no-brainer" return, effectively creating a cash-flow annuity that protects us from commodity price swings.
🐻 The Bear Case (Charlie inverts)
Munger’s rule: "Show me where I'll die and I won't go there."
The Capital Treadmill: Oil wells have high decline rates. EOG is effectively a company that must keep spending billions in capital expenditure just to maintain current production levels. It is the business equivalent of running on a treadmill to stay in the same place.
The "No-Moat" Trap: EOG doesn't have a brand or a product that differentiates them from the guy next door. Their "cost advantage" can be eroded by technological parity, regulation, or simple geological bad luck. When the music stops, the high fixed-cost base becomes a death sentence.
Stranded Asset Risk: Within a 10–20 year window, we face the prospect of terminal decline in fossil fuel relevance. If the regulatory environment shifts toward carbon taxation, EOG’s reserves—their primary "asset"—could be transformed into a liability overnight.
The Debt Poison Pill: Management is borrowing $7.9B while earnings are retreating. Leveraging up a cyclical business at the top of a cycle is the classic way to go broke.
💰 Valuation & Margin of Safety
The DCF model assumes a steady state that rarely exists in oil.
Intrinsic value estimate: $200.57 per share
25% margin of safety entry: $150.43
50% margin of safety entry: $100.29
Is it cheap? Currently, EOG is trading near its intrinsic value, offering zero margin of safety for an inherently volatile business. We are paying full price for a commodity producer that is currently seeing its efficiency metrics—the only thing that keeps it in the game—start to slip.
Verdict: PASS
We decline to invest because the risks of a capital-intensive, commodity-dependent treadmill outweigh the operational efficiency EOG provides. While the business is well-run, it lacks the permanent moat and predictable compounding qualities we demand at this valuation. We prefer to keep our capital dry rather than pay full price for the volatility of the oil patch.
Other Analyst Views· Lynch · Damodaran
Research Notes· Money Model · Moat · Financials · Management
Data sourced from SEC EDGAR XBRL filings (10-K only). For educational purposes — not investment advice.