OILT vs. MPC

Last updated Jun 23, 2026

OILT (Texas Capital Texas Oil Index ETF) is Energy Equities fund tracking the Alerian Texas Weighted Oil and Gas Index - Benchmark TR Gross, while MPC (Marathon Petroleum Corporation) is a stock. Over the past year, OILT returned 23.29% vs 49.08% for MPC. A 0.60 correlation means they provide meaningful diversification when combined.

Performance

OILT vs. MPC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Texas Capital Texas Oil Index ETF (OILT) and Marathon Petroleum Corporation (MPC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OILT achieves a 23.24% return, which is significantly lower than MPC's 53.40% return.

OILT

• 1D: 1.90%
• 1M: -9.61%
• YTD: 23.24%
• 6M: 24.93%
• 1Y: 23.29%
• 3Y*: —
• 5Y*: —
• 10Y*: —

MPC

• 1D: 1.80%
• 1M: -2.89%
• YTD: 53.40%
• 6M: 51.41%
• 1Y: 49.08%
• 3Y*: 33.05%
• 5Y*: 35.24%
• 10Y*: 25.24%

*Multi-year figures are annualized to reflect compound growth (CAGR)

OILT vs. MPC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
OILT Texas Capital Texas Oil Index ETF	23.24%	-3.30%	0.87%	0.13%
MPC Marathon Petroleum Corporation	53.40%	19.17%	-4.06%	-3.43%

Correlation

The correlation between OILT and MPC is 0.63, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.63
Correlation (All Time) Calculated using the full available price history since Dec 21, 2023	0.60

The correlation between OILT and MPC has been stable across timeframes, ranging from 0.60 to 0.63 - a consistent structural relationship.

Return for Risk

OILT vs. MPC — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

OILT

OILT Risk / Return Rank: 25
OILT Sharpe Ratio Rank: 24
OILT Sortino Ratio Rank: 23
OILT Omega Ratio Rank: 22
OILT Calmar Ratio Rank: 27
OILT Martin Ratio Rank: 28

MPC

MPC Risk / Return Rank: 80
MPC Sharpe Ratio Rank: 83
MPC Sortino Ratio Rank: 78
MPC Omega Ratio Rank: 78
MPC Calmar Ratio Rank: 82
MPC Martin Ratio Rank: 82

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

OILT vs. MPC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Texas Capital Texas Oil Index ETF (OILT) and Marathon Petroleum Corporation (MPC). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	OILT	MPC	Difference
Sharpe ratio: Return per unit of total volatility	0.83	1.54	-0.71
Sortino ratio: Return per unit of downside risk	1.26	2.08	-0.82
Omega ratio: Gain probability vs. loss probability	1.15	1.27	-0.12
Calmar ratio: Return relative to maximum drawdown	1.27	2.69	-1.42
Martin ratio: Return relative to average drawdown	3.75	7.03	-3.28

OILT vs. MPC - Sharpe Ratio Comparison

The current OILT Sharpe Ratio is 0.83, which is lower than the MPC Sharpe Ratio of 1.54. The chart below compares the historical Sharpe Ratios of OILT and MPC, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

OILT vs. MPC - Drawdown Comparison

The maximum OILT drawdown since its inception was -35.21%, smaller than the maximum MPC drawdown of -79.67%. Use the drawdown chart below to compare losses from any high point for OILT and MPC.

Drawdown Indicators

	OILT	MPC	Difference
Max Drawdown Largest peak-to-trough decline	-35.21%	-79.67%	+44.46%
Max Drawdown (1Y) Largest decline over 1 year	-18.38%	-18.33%	-0.05%
Max Drawdown (3Y) Largest decline over 3 years	—	-44.75%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-44.75%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-79.67%	—
Current Drawdown Current decline from peak	-16.83%	-7.45%	-9.38%
Average Drawdown Average peak-to-trough decline	-12.92%	-17.31%	+4.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.34%	7.01%	-0.67%

Volatility

OILT vs. MPC - Volatility Comparison

The current volatility for Texas Capital Texas Oil Index ETF (OILT) is 8.93%, while Marathon Petroleum Corporation (MPC) has a volatility of 10.61%. This indicates that OILT experiences smaller price fluctuations and is considered to be less risky than MPC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OILT	MPC	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.93%	10.61%	-1.68%
Volatility (6M) Calculated over the trailing 6-month period	21.49%	26.12%	-4.63%
Volatility (1Y) Calculated over the trailing 1-year period	28.33%	32.06%	-3.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.79%	33.09%	-4.30%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.79%	40.22%	-11.43%

Dividends

OILT vs. MPC - Dividend Comparison

OILT's dividend yield for the trailing twelve months is around 2.67%, more than MPC's 1.58% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MPC Marathon Petroleum Corporation	1.58%	2.29%	2.43%	2.07%	2.14%	3.63%	5.61%	3.52%	3.12%	2.30%	2.70%	2.20%
OILT Texas Capital Texas Oil Index ETF	2.67%	3.12%	2.63%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both OILT and MPC in my portfolio?

OILT and MPC have a correlation of 0.63, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OILT or MPC?

MPC has higher volatility (10.61%) compared to OILT (8.93%). In terms of maximum drawdown, OILT dropped -35.21% vs MPC's -79.67%.

Which has better risk-adjusted returns?

MPC currently has the higher Sharpe Ratio (1.54 vs 0.83), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.