MPLX Is Down 1% Since the Iran Conflict. 2 Things Investors Need to Know.

By Matt DiLallo – Mar 16, 2026 at 2:03AM ESTKey PointsMPLX is a leading crude oil and refined products logistics company. It has a volume-based business with limited direct commodity price exposure. Natural gas is the MLP's primary growth driver. Oil prices have skyrocketed since the U.S. and Israel launched military attacks against Iran. WTI, the primary U.S. oil price benchmark, has risen from less than $70 a barrel before the conflict began to nearly $100 a barrel. The surge in oil prices has fueled a rally in most oil stocks. However, units of MPLX (MPLX +0.27%) haven't gotten an oil-fueled boost. The master limited partnership (MLP) has lost nearly 1% of its value since the conflict started. Here are two things investors need to know about the pipeline company. Image source: Getty Images. MPLX has minimal direct exposure to crude prices MPLX is a large, diversified midstream energy company that operates infrastructure and logistics assets to support the oil and gas industry. Its assets primarily generate durable, fee-based earnings underpinned by long-term contracts and government-regulated rate structures. As a result, MPLX has limited direct exposure to commodity prices. For example, crude prices steadily declined last year, with WTI falling from a peak above $80 a barrel in early January to less than $60 a barrel by the end of the year. Despite that slump, MPLX's crude oil and products logistics assets grew their earnings by 4% last year, driven by higher pipeline volumes (up 3%) and rate increases (4% higher on average). ExpandNYSE: MPLXMPLXToday's Change(0.27%) $0.16Current Price$58.52Key Data PointsMarket Cap$59BDay's Range$57.84 - $58.9852wk Range$44.60 - $59.84Volume1.7MAvg Vol1.7MGross Margin45.17%Dividend Yield6.95% MPLX's volumes rose last year because its crude oil assets primarily support the operations of refining giant Marathon Petroleum. Demand for oil and refined products tends to rise as prices fall, which boosts the volumes flowing through MPLX's network. With crude prices surging this year, demand could fall, potentially negatively affecting the company's crude-related volumes. MPLX has a gas-fueled future Marathon Petroleum originally formed MPLX to own and operate logistics assets to support its refining operations. However, the MLP has evolved over the years, shifting its focus more toward natural gas and natural gas liquids (NGL). While its crude oil and products logistics segment remains its biggest earnings contributor (over $4.5 billion last year, compared to nearly $2.5 billion for its natural gas and NGL segment), gas is the company's main growth driver. Last year, MPLX invested nearly $1.7 billion in growth capital to expand its natural gas and NGL services operations, compared to only $245 million in crude oil and products logistics projects. Additionally, the MLP made over $3 billion in acquisitions last year to further expand its gas infrastructure. The company plans to invest even more in gas-focused organic growth capital projects this year ($2.2 billion, compared to $200 million in its crude oil and products logistics segment). That elevated investment rate in its gas infrastructure segment should continue. MPLX has major projects underway that should enter commercial service through the end of the decade. It has been capitalizing on surging gas demand to support LNG exports and rising power demand from AI data centers, EVs, and advanced manufacturing. Oil isn't what fuels MPLX's earnings Even though MPLX operates significant crude oil infrastructure, it's a volume-based business. Higher oil prices could actually reduce its volumes this year. Meanwhile, the company's growth focus is on natural gas. Given this, MPLX isn't the best energy stock to buy to capitalize on the rise in crude prices. Instead, it's a more durable, income-focused investment (yielding 7%+) with a more gas-fueled growth engine. Read NextMar 3, 2026 •By Matt DiLalloIs MPLX Stock Going to $100?Feb 23, 2026 •By Matt DiLallo1 High-Yield Dividend Stock You Can Buy and Hold for a Decade of IncomeFeb 14, 2026 •By Jason Hall3 Ultra-High-Yield Dividend Stocks for Safe Income in 2026 and BeyondFeb 4, 2026 •By Matt DiLalloYou Can Confidently Buy and Hold This Nearly 8%-Yielding Dividend Stock Through the End of the DecadeJan 31, 2026 •By Neha ChamariaMy 5 Favorite Ultra-High-Yield Dividend Stocks to Buy for 2026Jan 17, 2026 •By Matt DiLalloHere's How Many Shares of MPLX You'd Need for $1,000 in Yearly DividendsAbout the AuthorMatt DiLallo has been a contributing Motley Fool stock market analyst specializing in covering dividend-paying companies, particularly in the energy and REIT sectors, since 2012. He also covers pre-IPO companies, ETFs, and other investing topics. He holds an MBA from Liberty University.TMFmd19X@MatthewDiLalloStocks MentionedMPLXNYSE: MPLX$58.52(+0.27%)+$0.16Marathon PetroleumNYSE: MPC$226.15(-1.70%)-$3.92*Average returns of all recommendations since inception. Cost basis and return based on previous market day close.