Recent news coverage highlights OPEC+ maintaining production cuts, influencing oil prices and ETFs including USO. The fund has experienced notable inflows and outflows reflecting market sentiment and geopolitical developments.

• OPEC+ held output steady, maintaining 2 million barrels per day cuts, impacting oil prices and ETFs such as USO [N1].
• USO has experienced periods of large inflows and outflows, indicating fluctuating investor interest and market conditions [N3][N4].
• Market commentary notes the influence of geopolitical tensions and rate hike expectations on energy ETFs including USO [N4].

USO offers investors a transparent and accessible vehicle to gain exposure to crude oil price movements through regulated futures contracts. Its large asset base and liquidity support efficient trading and market participation. The fund's management of treasury investments and adherence to regulatory limits provide operational stability. Recent market developments, including OPEC+ production decisions, directly impact the fund's underlying assets and investor interest, highlighting its relevance in the energy investment space [N1].

USO faces risks from regulatory position limits and accountability levels that may restrict its ability to fully invest in benchmark oil futures, potentially causing tracking errors. Market volatility, geopolitical tensions, natural disasters, and public health disruptions can cause significant price fluctuations and impact the value and liquidity of its investments. Interest rate changes and inflation may affect the value of treasury holdings. Additionally, the fund's exposure to futures market structures such as contango can erode returns. Large inflows and outflows can also impact fund stability and share price dynamics.

USO's moat lies in its established position as a widely recognized and liquid exchange-traded fund providing investors with exposure to crude oil prices through futures contracts. Its regulatory compliance with position limits and accountability levels, along with its operational infrastructure for managing futures contracts and treasury investments, supports its ability to track benchmark oil prices. The fund's liquidity, trading on a major exchange, and use of creation and redemption baskets facilitate investor access and market efficiency. However, the fund's performance and tracking are subject to market structure risks such as contango and backwardation in futures markets, as well as regulatory constraints on futures positions.

• Regulatory Position Limits and Accountability Levels: USO is subject to position limits and accountability levels imposed by futures exchanges and the CFTC, which may restrict its investment capacity and cause tracking errors relative to benchmark crude oil prices [S1].
• Market and Geopolitical Volatility: Natural disasters, public health disruptions, geopolitical conflicts, and sanctions can cause significant volatility in crude oil prices and affect the value and liquidity of USO's investments [S1].
• Interest Rate and Inflation Risks: Changes in interest rates and inflation can impact the value of USO's treasury and money market investments, potentially affecting overall fund performance [S1].
• Futures Market Structure Risks: Market conditions such as contango and backwardation in crude oil futures can negatively impact total returns and cause tracking discrepancies [S1].
• Liquidity and Redemption Risks: Large inflows or outflows of investor capital can affect USO's liquidity and share price stability, influencing investor experience and fund management [N3][N4].

• United States Oil Fund, LP (USO) is an exchange-traded fund that invests primarily in crude oil futures contracts and other oil-related investments to track the price of benchmark crude oil futures.
• USO invests in Benchmark Oil Futures Contracts traded on U.S.-based futures exchanges such as NYMEX and ICE Futures, subject to accountability levels and position limits set by these exchanges.
• As of December 31, 2025, USO held 13,180 NYMEX WTI Crude Oil Futures CL contracts, exceeding the accountability levels but did not exceed position limits and no regulatory action was taken.
• USO's investment objective is to utilize substantially all proceeds to purchase oil futures contracts and other permitted oil-related investments.
• USO is subject to federal position limits under CFTC regulations, which may affect its ability to invest fully in benchmark oil futures contracts and could cause tracking errors relative to the benchmark.
• USO is a financial end-user under margin rules for swaps and is subject to variation margin requirements but does not have material swaps exposure requiring initial margin.
• USO's NAV per share was $145.44 as of September 30, 2026, with 11,323,603 limited partner shares outstanding.
• USO's total assets were approximately $1.7 billion as of September 30, 2026, including significant holdings in short-term U.S. Treasury obligations and cash equivalents.
• USO's net income for the nine months ended September 30, 2026 was approximately $678.7 million, with revenues of approximately $682.3 million for the same period.
• USO's investment portfolio includes open commodity futures contracts with unrealized gains and losses, and short-term U.S. Treasury bills with various maturities and yields around 3.4% to 3.8%.
• USO's shares trade on the NYSE Arca under the ticker symbol 'USO'.
• USO has an unlimited number of shares authorized and uses creation and redemption baskets for share issuance and redemption.
• USO's business and investment activities are influenced by geopolitical events, natural disasters, public health disruptions, inflation, interest rate risk, and regulatory changes affecting commodity futures and swaps.
• USO's management fees and other expenses are disclosed in SEC filings, with management fees around $4.4 million for the year ended December 31, 2025.
• Recent news highlights include OPEC+ maintaining output cuts, impacting oil prices and ETFs including USO [N1].
• USO has experienced periods of large inflows and outflows as reported in recent market news, reflecting investor sentiment and market conditions [N3][N4].