Funded utility growth, with LNG execution risk
- Sempra is becoming more of a regulated U.S. utility after agreeing to sell a 45% stake in SI Partners.
- Management says its $65B five-year capital plan needs no new common equity.
- ECA LNG Phase 1 is receiving feedgas and is expected to produce first LNG in June 2026.
- Oncor is getting a lift from Texas data center demand and the new Unified Tracker Mechanism.
- The main bear case is still Port Arthur LNG construction risk, tariffs, and California wildfire liability.
The funding overhang eased
Sempra looks stronger after Q1 2026. ECA LNG Phase 1 is receiving feedgas, and management expects first LNG production in June 2026, with substantial completion in summer 2026. That matters because ECA has been one of the big near-term proof points for the LNG side of the story.
The other major update is funding. Management reaffirmed that the record $65B five-year capital plan needs no new common equity. The plan leans on internal cash flow and the pending sale of a 45% stake in SI Partners for $9.99B.
The bull case is now cleaner. The company gets steadier growth from California and Texas utilities, Oncor is being helped by data center load growth, and the new Unified Tracker Mechanism should let Oncor recover some grid spending faster. Oncor also received a favorable April 2026 rate order with a 9.75% authorized return on equity.
The bear case has not gone away. Port Arthur LNG is still a large, long build. New U.S. tariffs could raise project costs. California wildfire risk and Mexico policy risk remain background problems that can hurt even a mostly regulated utility.
Monopoly wires, contracted gas exports
Sempra makes most of its money by owning regulated energy networks. In California, SDG&E and SoCalGas deliver electricity and natural gas. In Texas, Sempra owns most of Oncor, the largest power transmission and distribution system in the state.
Regulated utilities work differently from normal businesses. They spend money on poles, wires, pipes, and safety projects. Regulators then allow them to earn a set return on that capital if the spending is approved. That can make earnings steadier, but it also means regulators can cut or delay recovery.
Sempra Infrastructure is the higher-risk growth arm. It builds LNG export plants, pipelines, storage, and renewable power assets. LNG plants usually sell capacity under long-term contracts, which can make cash flow more predictable once a plant is built. The hard part is getting huge projects finished on time and on budget.
After the SI Partners sale closes, Sempra is expected to own a 25% non-controlling stake in that business. That should reduce funding stress, but it also means Sempra will have less control over a major growth platform.
What Sempra actually owns
SDG&E electric and gas utility
SDG&E serves electric customers in San Diego and southern Orange counties and gas customers in San Diego County. It is regulated, so allowed returns matter more than market prices.
SoCalGas natural gas utility
SoCalGas provides natural gas distribution, transmission, and storage service to much of Southern California. It is a large regulated gas network, but it faces long-term policy pressure in California.
Oncor Texas power grid
Oncor serves over 4 million homes and businesses and is seeing faster growth from large power users, including data centers. The new Unified Tracker Mechanism helps support grid investment recovery.
Sharyland Utilities
Sempra owns a 50% stake in Sharyland, a regulated Texas electric transmission utility. It is smaller than Oncor but fits the same regulated grid theme.
ECA LNG Phase 1
ECA LNG Phase 1 reached mechanical completion in December 2025 and introduced gas in April 2026. Management expects first LNG production in June 2026 and commercial operations in summer 2026.
Port Arthur LNG
Port Arthur LNG is Sempra Infrastructure's big long-term LNG build in Texas. Phase 1 is expected to start commercial operations at or near the end of 2027 and in 2028, while Phase 2 adds more upside and more execution risk.
Pipelines and Mexico renewables
Sempra Infrastructure also owns natural gas pipelines, storage, and renewable generation assets, including assets in Mexico. These can be backed by long-term customers, but Mexico policy changes are a risk.
Earnings come from regulated utilities
The mix uses 2025 segment earnings attributable to common shares from Sempra's 2025 Form 10-K, measured as shares of positive segment earnings before Parent and other. Sempra Infrastructure is shown at zero because it posted a $160M segment loss in 2025, mainly from tax and currency items tied to held-for-sale assets.
What can still break
Port Arthur LNG build risk
High impact · Medium oddsPort Arthur LNG is a large construction project with years left before full cash flow. Management says Phase 1 remains on time and on budget, with Train 1 near the end of 2027 and Train 2 in 2028. A fatal 2025 site incident also keeps safety, legal, and schedule questions in view.
Tariffs raise LNG costs
Medium impact · Medium oddsSempra now warns that new and higher U.S. tariffs on imported materials could raise costs across LNG projects. That matters most for Port Arthur, where even small percentage overruns can mean large dollar changes. The open question is how much of the added cost is already covered by contracts or contingencies.
SI Partners sale does not close cleanly
High impact · Low oddsThe $9.99B sale of a 45% stake in SI Partners is central to the no-new-equity funding claim. Sempra expects closing in Q2 or Q3 2026, subject to conditions. A delay or worse terms would bring back financing concerns.
California wildfire liability
High impact · Medium oddsCalifornia utilities can face large claims if equipment is linked to a major wildfire. The 2025 wildfire law added an $18B Continuation Account if the initial Wildfire Fund is depleted, which helps. It does not remove the risk of big claims, higher insurance costs, or tougher regulation.
Texas load boom disappoints
Medium impact · Medium oddsOncor's growth case depends on connecting large new loads, especially data centers. The demand queue is large, but requests are not the same as completed connections. If ERCOT approvals, transmission projects, or customer commitments slow, the earnings lift could arrive later than hoped.
Mexico policy changes
Medium impact · Medium oddsSempra owns energy infrastructure tied to Mexico, where new 2025 energy laws increased government control of the sector. That can make permits, contracts, and future projects harder. The Ecogas sale also adds a transaction item to monitor.
In one breath
Is Sempra mainly a utility or an LNG company?
Sempra is mainly a regulated utility holding company, with major gas and electric networks in California and Texas. It also owns LNG and pipeline assets through Sempra Infrastructure, but its planned SI Partners sale makes the company look more utility-heavy.
Why does the SI Partners sale matter?
Sempra agreed to sell a 45% stake in SI Partners for $9.99B. Management says that deal helps fund the $65B five-year capital plan without issuing new common equity.
What is the biggest near-term catalyst for Sempra?
ECA LNG Phase 1 is the clearest near-term catalyst. It is receiving feedgas, with first LNG expected in June 2026 and substantial completion targeted for summer 2026.
What is Oncor's role in the Sempra story?
Oncor is Sempra's Texas grid business and a key growth engine. Data centers and other large power users are driving demand, while the Unified Tracker Mechanism and a 9.75% authorized return on equity improve the regulatory setup.