Heating Oil & Distillates
The fuel that warms the Northeast and powers America’s commercial fleet. Heating oil (ULSD) is the benchmark for distillate fuels — chemically similar to diesel, seasonally dependent, and a key refining output.
What Is Heating Oil?
Heating oil is refined petroleum distillate used primarily to heat homes and commercial buildings in the U.S. Northeast. Chemically, it is nearly identical to on-road diesel fuel — both are No. 2 fuel oil with ultra-low sulfur content (under 15 parts per million). The difference is primarily regulatory: diesel has red dye removed and higher federal tax.
Approximately 5 million U.S. households rely on heating oil — heavily concentrated in New England, New York, and New Jersey. Heating oil consumption is roughly 400,000 barrels per day during winter, dropping to near-zero during summer. This seasonal pattern drives distinctive price dynamics.
Heating Oil and Diesel: One Product, Two Markets
Refineries produce a single distillate stream that can be sold as heating oil or diesel depending on market demand. When diesel demand is strong (summer trucking, agriculture), refineries maximize diesel output. When heating demand peaks (winter), the same barrels flow into heating oil markets. This flexibility means diesel and heating oil prices track each other very closely — typically within $0.10-0.20/gallon.
The NYMEX ULSD futures contract (Ultra-Low Sulfur Diesel, symbol HO) is the benchmark for both markets. Despite its ticker (HO for heating oil), it is effectively the primary U.S. diesel futures contract. Current ULSD prices near $3.20/gallon reflect combined demand from trucking, agriculture, marine, and residential heating markets.
Refining Margins and Distillate Cracks
The diesel crack spread is the difference between ULSD price and crude oil price, in dollars per barrel equivalent. A typical crack is $20-30/barrel. When distillate demand is strong or inventories are tight, cracks can exceed $50/barrel — creating windfall profits for refiners. When crude rises faster than diesel, cracks compress.
Refinery outages in the Northeast (Philadelphia Energy Solutions closed in 2019) reduce regional distillate supply and push heating oil premiums higher. Gulf Coast refineries ship diesel via pipeline to the Northeast, but pipeline capacity is a constraint during cold snaps. These dynamics make distillate markets more volatile than their benchmark suggests.
Northeast Winter Dependency
Approximately 82% of U.S. households using heating oil are in the Northeast. New England leads — Maine gets 59% of home heating from oil, New Hampshire 40%, Vermont 34%, Connecticut 28%. This regional concentration creates a geographically-specific winter demand pattern that other regions do not experience.
Heating oil demand in the Northeast is driven by heating degree days (HDDs) — the cumulative difference between outdoor temperature and 65°F. Extreme cold snaps can quadruple weekly demand. The industry maintains a 1-million-barrel Northeast Home Heating Oil Reserve as emergency backup.