Warren Buffett Was Right: These Oil Stocks Are the Safest Bet in an Iran-Rattled Market

By Matt DiLallo – Mar 29, 2026 at 6:02AM ESTKey PointsWarren Buffett made Chevron and Occidental Petroleum two of Berkshire's 10 largest holdings. Both oil giants can thrive at much lower oil prices. They're really cashing in this year now that crude prices have surged. Warren Buffett made a bold bet on a couple of oil stocks before he retired as Berkshire Hathaway's (BRKA 1.24%)(BRKB 1.33%) CEO earlier this year. His company bought nearly 27% of Occidental Petroleum's (OXY +1.49%) outstanding shares and built a 6.5% stake in oil giant Chevron (CVX +1.62%), making them Berkshire's sixth- and fourth-largest holdings, respectively. Those moves have paid off this year as crude prices skyrocketed due to the war with Iran. Here's a look at why these top oil stocks remain a safe bet in today's Iran-rattled market. Image source: The Motley Fool. Repositioned to thrive at lower oil prices Occidental has spent the past several years building a larger-scale, more focused oil company, thanks in part to Berkshire's help. Buffett's company helped Occidental fund its $38 billion acquisition of Anadarko Petroleum in 2019 through a preferred stock investment, enabling it to beat out a rival offer from Chevron. Occidental also acquired CrownRock for $12 billion in 2024. While those deals saddled Occidental with a lot of debt, it has steadily whittled down its borrowings by generating free cash flow and selling assets, including selling OxyChem to Berkshire for $9.7 billion earlier this year. As a result, Occidental can thrive at lower oil prices. It was on track to generate $1.2 billion of additional free cash flow this year without any increase in oil prices. Meanwhile, with crude oil soaring this year, Occidental will produce an even bigger free cash flow gusher, giving it additional funds to repay debt, repurchase stock, and eventually redeem Berkshire's preferred stock investment. ExpandNYSE: OXYOccidental PetroleumToday's Change(1.49%) $0.96Current Price$65.32Key Data PointsMarket Cap$64BDay's Range$64.20 - $66.0052wk Range$34.78 - $66.00Volume1MAvg Vol15MGross Margin31.94%Dividend Yield1.50% The perfect time to hit an inflection point Chevron has also spent the past few years upgrading its portfolio. It sold off several lower-margin assets and has invested heavily in developing and acquiring higher-margin assets. The oil giant completed several major growth capital projects last year and closed its $55 billion acquisition of Hess. As a result, Chevron expected to generate $12.5 billion of incremental free cash flow this year at $70 oil. With oil prices now much higher, it can produce an even bigger free cash flow gusher. The oil company can use those funds to further fortify its elite balance sheet and repurchase shares toward the top end of its $10 billion to $20 billion target range. ExpandNYSE: CVXChevronToday's Change(1.62%) $3.36Current Price$211.15Key Data PointsMarket Cap$421BDay's Range$206.25 - $212.4652wk Range$132.04 - $212.46Volume14MAvg Vol13MGross Margin14.66%Dividend Yield3.27% Chevron's strategy of investing in low-cost, high-margin assets will really pay off in the coming years. It can generate enough cash to fund its capital program and dividend at sub-$50 oil. As a result, it can produce substantial free cash flow at higher prices. For example, it can grow its free cash flow at a more than 10% annual rate if crude averages $70 a barrel through 2030. Top-tier oil stocks Occidental Petroleum and Chevron both expected to generate meaningfully more free cash flow this year without any increase in crude prices. They're now on track to produce even bigger gushers now that prices are much higher. Their ability to thrive at lower oil prices shows that Buffett was right that they were safe bets to add to Berkshire's portfolio. Read NextMar 26, 2026 •By Brett SchaferProtect Your Portfolio From Inflation: Buy These 2 Energy StocksMar 19, 2026 •By Matt DiLallo5 Stocks That Historically Surge When Oil Prices Spike Above $100Mar 18, 2026 •By Matt DiLalloOil Stocks Could Reap a $60 Billion Windfall if Crude Prices Remain Elevated This YearMar 17, 2026 •By Brett SchaferThe Smartest Dividend Stocks to Buy With $150 Right NowMar 15, 2026 •By Matt DiLalloOccidental Petroleum Is Up 9% Since the Iran Conflict. Here Are 2 Things Investors Need to Know.Mar 12, 2026 •By Billy DubersteinWhy Occidental Petroleum Rallied TodayAbout the AuthorMatt DiLallo has been a contributing Motley Fool stock market analyst specializing in covering dividend-paying companies, particularly in the energy and REIT sectors, since 2012. He also covers pre-IPO companies, ETFs, and other investing topics. He holds an MBA from Liberty University.TMFmd19X@MatthewDiLalloStocks MentionedOccidental PetroleumNYSE: OXY$65.32(+1.49%)+$0.96Berkshire HathawayNYSE: BRKA$703,699.99(-1.24%)-$8,800.01Berkshire HathawayNYSE: BRKB$468.49(-1.43%)-$6.78ChevronNYSE: CVX$211.15(+1.62%)+$3.36*Average returns of all recommendations since inception. Cost basis and return based on previous market day close.