TacticScaleWhat Southwest Gas Does & How It Makes Money (SWX)
Updated October 2026 · reflects Southwest Gas's latest reported financials
Natural gas utility serving Arizona, Nevada, and California customers. As a regulated utility, it earns revenue from state-approved tariff rates for selling and delivering natural gas, plus fees for transporting gas that customers buy from other suppliers.
How Southwest Gas makes money
As a regulated utility, it earns revenue from state-approved tariff rates for selling and delivering natural gas, plus fees for transporting gas that customers buy from other suppliers. Its pipeline transmission system is another source of income.
What Southwest Gas does
Southwest Gas Holdings, Inc. operates mainly through its subsidiary, Southwest Gas Corporation, a regulated natural gas utility that buys, distributes, and transports gas for residential, commercial, and industrial customers. As of December 31, 2025, it served about 2,281,000 customers: roughly 1,224,000 in Arizona, 849,000 in Nevada, and 208,000 in California. It sells gas at tariff rates and also offers transportation services, and it runs a pipeline transmission system that includes an LNG storage facility. The company was founded in 1931 and is based in Las Vegas, Nevada. Because it is a regulated utility focused on fast-growing Southwestern states, its results depend largely on customer growth and the rates regulators approve.
Products & services
- Residential natural gas distribution
- Commercial and industrial gas supply
- Tariff gas sales
- Gas transportation services
- Pipeline transmission system
- LNG storage facility
What is Southwest Gas worth?
On an owner-earnings DCF, Southwest Gas's most-likely value is about $36 versus a recent price near $84 (58% above fair value). But TacticScale only calls a stock undervalued when the price sits below its conservative no-growth floor (~$22) with a margin of safety — so the honest verdict here is “Fairly priced — no edge.” Fair value earns its keep only at the extremes, not in the wide middle.
Price sits in the normal range — fair value isn't actionable here; it earns its keep only when price drops below the no-growth floor, or runs to roughly double the optimistic case.
⚠ High leverage — net debt is 14.3× annual cash flow. Net debt is subtracted from this fair value, but refinancing at higher rates, principal timing, and share dilution aren’t modeled — the equity can be worth far less if cash flow weakens.
⚠ Capital-intensive — this business reinvests heavily, so free cash flow runs well below its earnings. Fair value here is built on free cash flow, which understates owner earnings for reinvestment-heavy companies — read it as conservative.
Analysis, not advice. Fair value is a margin-of-safety estimate from a deterministic owner-earnings DCF, not a price target or recommendation. See the full breakdown →
Related companies
Northwest Natural Holding (NWN) · NorthWestern Energy (NWE) · Sempra (SRE) · Shenzhen Gas (601139.SS)