When crude blew through $100 this spring on the Hormuz disruption, two ETFs caught the bid hardest: SPDR S&P Oil & Gas Exploration & Production ETF (NYSEARCA:XOP) and VanEck Oil Services ETF (NYSEARCA:OIH). Both look like clean ways to play oil above $100. Their exposures diverge sharply. XOP owns the companies that pump barrels. OIH owns the companies that sell drillers their rigs, frac fleets, and seismic surveys. That distinction explains why OIH is up 34.46% year to date and XOP is up 32%. Although oil came back down to the ceasefire in Iran, the current resumption of US bombs on remaining Iranian military targets has oil climbing back up.
The Bet Each Fund Is Making
XOP tracks an equal-weight S&P E&P index, so a smaller-cap name like Gulfport Energy at 2.78% carries roughly the same weight as Exxon Mobil at 2.79%. The implicit bet is that the spot price of crude moves first, producer cash flow expands in lockstep, and small independents like Coterra Energy and Magnolia Oil & Gas deliver the high-beta torque the majors cannot. XOP wins fast spikes.
OIH is concentrated, modified-cap weighted, and holds roughly 26 oilfield services and equipment names dominated by SLB and Halliburton. Services revenue runs on drilling activity, completions, and capex budgets, not the spot price. Producers have to believe high prices will last before they commission more rigs and frac crews. OIH wins durable rallies that pull capex off the sidelines.
Where The Spike Showed Up
WTI peaked at $114.58 on April 7, 2026 and held above $100 from May 11 through May 22 as the Strait of Hormuz stayed effectively closed and 10.5 million barrels per day of Middle East production was shut in. Over the trailing year, OIH returned 60.24% against XOP’s 17.33%. That gap reflects the market pricing in a real services capex cycle rather than a single quarter of better realized prices for producers.
The mirror image showed up the past month. With WTI back to $84.65, OIH dropped 9.48% in a week against XOP’s 6.15%. Services unwind faster when the capex thesis weakens.
The Decade Tells The Real Story
Over 10 years, XOP is up 29.78%. OIH is down 22.3%. Shale capital discipline since 2020 starved service providers of pricing power even when producers were minting cash. Owning OIH long term is a bet that this discipline cracks. Owning XOP is a bet you can collect the cash flow without waiting for it to.
Practical Comparison
| Factor | XOP | OIH |
|---|---|---|
| Focus | Upstream E&P | Oilfield services & equipment |
| Construction | Equal-weight, ~60+ holdings | Modified cap-weight, ~26 holdings |
| Expense ratio | 0.35% | 0.35% |
| YTD 2026 | +32% | +34.46% |
| 1-year | +27.01% | +54.40% |
| 10-year | +44% | -26% |
The Verdict
For an investor convinced the Hormuz premium snaps back and crude reclaims $100 quickly, XOP is the cleaner instrument. The equal-weight book gives you torque from small independents that re-rate violently on spot moves, without single-name risk. For an investor who believes elevated prices will linger long enough to force producers to actually spend, including reactivating idled US rigs as the EIA warns it takes several months for shale supply to respond, OIH offers the leveraged play on that capex cycle. The 10-year chart is the warning: services need a sustained, multi-year up-cycle to justify ownership, and they have not gotten one in a decade. With WTI now up 4.6% in a month, the case for OIH only holds if you believe the geopolitical premium is coming back strongly. If not, XOP’s broader sleeve and stronger long-run track record make it the steadier vehicle.
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