US Gulf coast naphtha supplies accumulated in the last half of 2024 amid faltering demand, with gasoline blenders representing a higher profile buying sector, but a pending refinery closure is set to tighten the market.
Demand for all naphtha grades was much weaker coming into December because of a bearish gasoline outlook and as elevated octane prices dampened naphtha demand.
Poor refinery margins encouraged refiners to run minimally, cutting back on refiner demand as well.
Gasoline blenders' demand for naphtha dominated in 2024, which highlighted stronger naphtha prices in visible trades. Prices for good quality, low sulphur N+A naphtha into the gasoline blend pool averaged about 10-15¢/USG above generic reformer feedstock naphtha.
Naphtha sellers were also keen to export, which moved larger volumes without engaging in volatile domestic spot markets.
US naphtha exports this year through mid-Decemberwere up by over 50pc to average 272,730 b/d from a year prior, according to Vortexa data. From November to mid-December, naphtha departures from the US were up on the year by 66pc to 312,800 b/d.
Despite overall increased exports in 2024, weakened Asia Pacific and European naphtha markets in the latter half of December diminished arbitrage opportunities.
Heavy virgin naphtha (HVN) differentials to Nymex RBOB hovered in the mid-to-stronger 30s¢/USG discounts in the first half of December, compared with upper Nymex RBOB -40s¢/USG observed in the same period last year. However, these higher differentials were attributed more to the lower Nymex RBOB pricing basis than market strength. Comparative cash prices hovered around 160¢/USG year on year, despite a 10¢/bl hike in differentials in 2024.
Supply, demand changes in store
A major supply change in the Gulf coast naphtha market should tighten the ample supply of naphtha by February.
LyondellBasell is on schedule to begin a staggered shutdown of its 264,000 b/d refinery in Houston, Texas, in January. The last crude distillation unit (CDU) at the site is expected to shut by February.
The refiner is a steady supplier of premium quality HVN with very low sulphur, which is typically sold into the gasoline blending market.
Depending on production rates, LyondellBasell, also known as Houston Refining (HRC) in naphtha circles, can load 10-15 barges of the premium quality HVN a month.
However, Gulf coast naphtha remains well-supplied. ExxonMobil's third CDU at its 609,000 b/d Beaumont, Texas, refinery started operations in 2023, adding more naphtha production to the region.
Naphtha exports were also significant on the demand front in 2024, despite Gulf coast naphtha export opportunities to Venezuela being curbed again on 18 April.
US sanctions on oil trades to Venezuela were eased in October 2023, but reimposed by April this year due to fresh political conflict. Naphtha exports to Venezuela are currently restricted to joint-venture partners such as Chevron and Reliance.
Some participants hope the incoming administration of president-elect Donald Trump will re-address oil trading with Venezuela, keeping this an item to watch in 2025.
US naphtha exports to Venezuela averaged 57,600 b/d in 2024, up from 11,100 b/d during 2023, according to Vortexa, on relaxation of Venezuela sanctions from October 2023 through May 2024.
Meanwhile, naphtha exports out of the Gulf coast were still focused on shipments to South America, led by Brazil and Colombia.
Exports to Brazil averaged 48,600 b/d in 2024, up by 68pc from 2023 while naphtha arrivals in Colombia averaged 36,600 b/d in 2024, up by 36pc from 2023.
Colombia buys light naphtha from the US for use as diluent and sells full-range naphtha out of Mamonal port to the US.