The SPDR S&P Oil & Gas Exploration & Production ETF (NYSEARCA:XOP) and the VanEck Oil Services ETF (NYSEARCA:OIH) both promise energy exposure, but they bet on different links in the same chain. XOP owns the drillers that sell barrels. OIH owns the contractors that drill the wells. Over the past year that distinction produced a startling gap: OIH returned 62.87% while XOP returned 18.47%. Same sector, very different machines.
What each fund is actually betting on
XOP is a bet on the oil price itself. The fund uses a modified equal-weight build, so a Permian independent sits beside an integrated major. Top positions include Venture Global at 3.11%, Exxon Mobil at 2.79%, Chevron at 2.79%, Gulfport Energy at 2.78% and Occidental Petroleum at 2.73%. Equal weighting tilts XOP toward small and mid-cap producers whose cash flow swings hardest with each dollar of WTI. When crude rises, their margins expand faster than the majors’.
OIH is a bet on the drilling capex cycle. The MVIS index is market-cap weighted and concentrated, with SLB, Halliburton and Baker Hughes dominating the book. Service companies get paid when E&Ps decide to spend on rigs and equipment, not on barrel sales themselves. That makes OIH a second-derivative play: oil prices must stay high long enough, and confidently enough, for producers to greenlight rigs, fracs and offshore programs.
Where the difference shows up
The current cycle illustrates the split. WTI hit a 12-month high of $114.58 on April 7, 2026, then fell to $84.65 by June 15, with the de facto closure of the Strait of Hormuz tightening supplies and pushing Brent to $138 intraday. That spike rewarded OIH disproportionately because service backlogs and day rates surged on tightened global capacity. OIH still posted a 36.57% YTD return through June 22 versus XOP’s 23.78%.
Stretch the window and the picture inverts. Over ten years, XOP returned 35.63%, while OIH is down 20.09%. The shale era crushed service pricing power even as producers learned to make money at lower breakevens. OIH wins sharp up-cycles. It loses long, capital-disciplined ones.
The practical comparison
| Metric | XOP | OIH |
|---|---|---|
| Segment | Upstream E&P | Oilfield services |
| Weighting | Modified equal-weight | Market-cap, top-heavy |
| Expense ratio | 0.35% | 0.35% |
| YTD 2026 return | 23.78% | 36.57% |
| 1-month return | -9.48% | -12.4% |
| 10-year return | 35.63% | -20.09% |
OIH’s concentration is the hidden risk most buyers miss. A single SLB earnings miss can move the fund several percent. XOP’s equal-weight design spreads single-stock risk across roughly four dozen producers, but it amplifies commodity beta because small caps are the most leveraged operators in the patch.
The verdict
XOP fits the investor with a direct view on crude. If you believe oil holds above $80 and want clean leverage to that thesis, equal-weighted E&P exposure is the cleanest way to express it. OIH fits the investor betting on a sustained capex super-cycle, with conviction that producers will spend rather than buy back stock. The EIA’s May 2026 outlook sees Brent dropping to $89 in Q4 2026 and $79 in 2027, a glide path that historically favors XOP over OIH. The calculus flips if Middle East supply stays disrupted or if shale productivity finally rolls over, forcing operators to drill harder for the same output. Until then, XOP is the cleaner energy bet.
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