ETF Comparison: State Street Energy Select Sector SPDR ETF (XLE) Versus State Street SPDR S&P Oil & Gas Exploration & Production ETF (XOP)

XLE vs. XOP: Total Cost of Ownership

I’ve said this before, and it still holds. The more specific an ETF becomes, the more expensive it usually is. Even within the same sector, costs can vary meaningfully.

XLE’s expense ratio sits at just 0.08%, making it one of the cheapest ways to access U.S. energy equities. XOP is pricier at 0.35%. That’s higher than XLE, but fairly standard for a subsector ETF that goes deeper into a specific slice of the energy industry.

Expense ratios aren’t the only cost investors face, especially if they’re trading tactically. Bid-ask spreads matter when getting in and out of positions. Here again, XLE has the edge. Its 30-day average bid-ask spread is just 0.022%. XOP’s spread is still tight at 0.025%, but marginally worse.

Verdict: When you combine expense ratios and trading costs, XLE is cheaper than XOP for both long-term buy-and-hold investors and short-term tactical traders.

XLE vs. XOP: Methodology and Exposure

This is where the real differences emerge. Both XLE and XOP are passive ETFs tracking S&P indices, but the construction rules lead to very different exposures and sensitivities to macro news.

XLE tracks the Energy Select Sector Index. It holds the 22 energy companies within the S&P 500 and weights them by market capitalization. Because constituents must be in the S&P 500, the ETF naturally skews toward large-cap companies with established profitability, liquidity, and balance sheet strength.

XOP tracks the S&P Oil & Gas Exploration & Production Select Industry Index. It goes a level deeper than sector exposure, focusing on companies involved in oil and gas exploration, production, refining, and marketing. While upstream names dominate, it isn’t a pure-play E&P ETF. What it notably excludes is midstream exposure. There are no pipelines or MLPs here.

XLE is far more top-heavy in terms of composition. The top 15 holdings make up 89.53% of XLE, compared with just 43.79% for XOP. That difference is entirely due to the weighting methodology. In XLE, Exxon Mobil accounts for 23.33% of the fund, Chevron for 17.54%, and ConocoPhillips for 6.68%. Market-cap weighting in a narrow sector tends to produce this result.

XOP, by contrast, uses an equal-weight methodology. At each rebalance, companies receive roughly the same weight regardless of size. This creates a built-in buy-low, sell-high effect, but it can also cap momentum when a small number of winners start to pull away from the pack. As a result, XOP’s top holdings tend to be whichever companies have outperformed since the last rebalance.

Verdict: For long-term investors, I still prefer XLE. In energy, the size effect matters. Supermajors benefit from capital discipline, fortified balance sheets, and deal-making leverage. Recent events in Venezuela highlight this. Exxon Mobil and Chevron, XLE’s two largest holdings, already have existing interests in the region and significant lobbying power, positioning them to benefit disproportionately from political outcomes. XOP’s scattered exposure makes it less effective for expressing that kind of targeted thesis.

XLE vs. XOP: Risk and Return

Energy equities have had a solid run in recent years, particularly coming off the extreme stress of March 2020, when oil prices briefly went negative during the onset of COVID-19.

Over the past five years, XLE has meaningfully outperformed XOP. That leadership has also held over the past three-year and one-year periods. Despite this performance, both ETFs have experienced notable net outflows. Over five years, approximately $9.46 billion left XLE, while XOP saw outflows of about $3.45 billion. Energy has been out of favor, with investor attention focused elsewhere, particularly on AI.

From a risk perspective, XLE has been consistently less volatile. Its standard deviation has been lower than XOP’s over five-, three-, and one-year periods. XOP’s equal-weight approach reduces single-stock concentration but increases exposure to cyclical small- and mid-cap energy companies. These firms often have weaker balance sheets and less capital discipline. XOP has experienced larger peak-to-trough losses and longer recovery periods than XLE across multiple time frames.

A longer backtest tells a similar story. From June 22, 2006, to January 5, 2026, a period of roughly 19.5 years, XLE delivered a cumulative return of 220.36%, or an annualized return of 6.14%. XOP, over the same period, returned just 21.04% cumulatively, or 0.98% annualized.

I think this gap reflects how the ETFs rebalance. XOP’s equal-weight structure repeatedly trims winners and reallocates toward laggards. In a sector ultimately dominated by a handful of global giants, that has historically meant selling the companies that mattered most and buying those that never scaled.

Verdict: From a risk-and-return perspective, XLE has been the superior choice. While XOP can make sense for short-term, high-beta bets on smaller producers, XLE’s concentration in supermajors has historically worked in investors’ favor. For core energy exposure, the evidence still points to XLE.

Please note this article is for information purposes only and does not in any way constitute investment advice. It is essential that you seek advice from a registered financial professional prior to making any investment decision.