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Northwest Natural Holding Company gets most of its revenue from NW Natural, which supplies natural gas through its distribution network in Oregon and southwest Washington. Households and businesses pay for gas and delivery; some large customers buy gas elsewhere and pay NW Natural to transport it. Gas purchase costs largely pass through to customers rather than generate profit. The utility earns through approved delivery rates that allow it to recover costs and earn a return on its infrastructure. Residential and commercial customers provide most of its utility margin, with no single customer dominating revenue.
The company also owns SiEnergy, which supplies and transports gas in Texas, and NWN Water. NWN Water charges customers for water and wastewater services and charges system owners to operate and maintain their facilities. These businesses are much smaller than NW Natural.
NW Natural has exclusive distribution territories, but regulators control its rates, cost recovery and allowed returns. Earnings depend especially on customer growth and infrastructure investment being reflected in approved rates. Oregon temporarily restricts how soon it can file another general rate case. Its distribution system also connects directly to a single interstate pipeline operated by Northwest Pipeline. At the holding-company level, cash depends on subsidiary distributions; regulatory rules can restrict NW Natural’s dividends when its credit ratings or equity levels fall too low.
The risk section is the longest, dullest part of the filing. This keeps only what can really hurt you: where it hits, how hard, when it plays out.
Every company claims an edge. Each one is checked against hard numbers like margins and returns: which hold, and which line gives way first.
ONE Gas competes with NWN's SiEnergy for new Austin-area developments; both supply households and businesses with gas at regulated rates. Builders' choice of gas or electricity at installation can lock in a community's energy source, making new connections the business to watch.
Spire Inc. shares NWN's reliance on regulated returns from selling gas to customers and charging to move customer-owned gas, and both also operate storage businesses. Spire Missouri's heating-energy sales and Spire Alabama's transport fees from large commercial and industrial customers offer distinct comparisons for NWN's gas business.
Southwest Gas Holdings, Inc. and NWN both earn regulated returns supplying gas to households and businesses, while builders' equipment choices shape new household connections. Southwest Gas's success getting gas into new homes shows how gas competes with electricity at the point when customers choose equipment—a challenge NWN's SiEnergy also faces.
New Jersey Resources Corp offers a comparison for NWN's mix of regulated gas service to households and businesses, gas storage and other energy operations. Its NJNG utility serves residential and commercial customers in New Jersey, so that business is the closer comparison than its clean-energy projects or unregulated energy trading.
Atmos Energy Corporation competes with NWN's SiEnergy for new gas connections in Texas. Both supply gas to customers and earn regulated returns on the infrastructure that serves them.
Portland General Electric pays NWN for dedicated North Mist gas storage, while the electricity it sells to Oregon customers competes with NWN's gas. North Mist serves PGE's gas-fired plants under a 30-year contract, with storage billing rates updated annually for forecast asset and operating costs.
Avista Corporation and NWN both supply gas to customers under regulation in Oregon and Washington, exposing them to overlapping regional regulatory and energy-policy conditions. Avista's gas-utility news in those states is the relevant comparison, rather than its electricity operations elsewhere.
NWN depends on Williams Companies Inc.'s Northwest Pipeline to bring gas into Portland and pays monthly charges to reserve transport capacity. Capacity renewals and operating news on that pipeline matter directly to NWN's supply: its firm transport contracts expire from 2026 to 2061.
Chesapeake Utilities resembles NWN in combining regulated gas delivery to customers with gas infrastructure and unregulated energy services. Its separate Regulated Energy and Unregulated Energy results help distinguish the utility business from activities such as propane sales and mobile compressed-gas services when comparing it with NWN.
Unitil Corporation offers a comparison for NWN's regulated gas service to households and businesses, but also earns revenue distributing electricity. Its gas-distribution business is the closer match for NWN, whose residential customers accounted for 66% of NWN Gas Utility margin in the December 31, 2025 meter summary.
Enbridge's Canadian gas pipelines support NWN's supply to its customers; about 60% of NW Natural's gas came from Canada in 2025. Watch pipeline restrictions and repairs: Enbridge's October 2018 rupture near Prince George, British Columbia disrupted flows into Washington, with reduced pressure continuing after repairs during assessment and testing.
Housing Starts (Sep)
For NW Natural, housing reports track new homes being built or sold in its service territory, which can add gas customers and deliveries and support utility margin—the revenue left after gas and certain other costs.
Expected1.31MLast release1.275M
If it comes in above expectations
If the reading is above the 1.31M estimate, it is above the previous 1.275M. More building can expand NW Natural’s customer base and gas deliveries, supporting utility margin; the benefit depends on new homes becoming customers and using its service.
If it comes in below expectations
Less building can limit customer additions and gas-delivery growth, weakening the contribution to NW Natural’s utility margin, especially while housing starts in its service territory are already below historical levels.
Portland General Electric Company earningsPOR
Portland General Electric’s report will show how its gas-fired plants use the dedicated North Mist storage service that NW Natural provides.
Look for what Portland General Electric says about gas-fired generation and its use of storage. More use would indicate stronger demand from this customer for NW Natural’s dedicated storage service; less use would mean weaker customer support for that business.
ONE GAS, INC. earningsOGS
ONE Gas’s report will show whether new Austin-area developments are adding gas customers in the market where it competes with NW Natural’s SiEnergy.
Look at new customer connections and what the company says about development. More connections would indicate builders and households are still choosing gas, supporting the market in which SiEnergy seeks new customers; slower growth would mean fewer openings for expansion and potentially stronger competition from electricity.
Williams Companies Inc. earningsWMB
Williams Companies’ report will show whether Northwest Pipeline can keep transporting gas toward Portland, a delivery route NW Natural depends on to serve customers.
Watch for Northwest Pipeline operating updates, available transport capacity, and any restrictions. Reliable operations and sufficient capacity would support the route NW Natural uses to deliver gas to customers; interruptions or constraints would put supply reliability and mitigation costs in question.
Avista Corporation earningsAVA
Avista’s report will show how regulation and energy policy affect its gas utility in Oregon and Washington, where NW Natural also serves customers.
Look at Avista’s gas-utility rate recovery and regulatory disclosures. Cost recovery through rates would suggest a more supportive utility environment in the two states; difficulty recovering costs or added regulatory burdens would point to a tougher regional backdrop for NW Natural, though the companies’ results may differ.
Northwest Natural Holding Company earningsThis company
Northwest Natural’s report will show whether regulated gas rates are covering the cost of serving customers and supporting profit.
Read gas utility margin—revenue after gas costs and certain other costs—alongside operations and maintenance and depreciation expenses. If margin grows faster than those expenses, rate recovery is adding to profit; if expenses grow faster, costs are absorbing the gain and the business’s ability to keep recovering them through rates matters more.
