Lube refinery

Calumet Princeton Refinery (Calumet Lubricants - Princeton)

Calumet Princeton Refining LLC · Calumet, Inc. (NASDAQ: CLMT); acquired 1990 from the Heritage Group and renamed Calumet Lubricants · Princeton, LA

Operating PADD3 asphalt naphthenic base oil process oils transformer oil refrigeration oil

Aerial view of the site Imagery: USDA, USGS The National Map (public domain)

bpd crude capacity · EIA 2026: 8,300
pipelines it injects into: 0
delivery points reachable: 0
terminals on those points: 0
events on record: 1

Capability

Crude distillation 8,300 bpd operable, 8,300 operating (EIA-820, as of 2026-01-01). Downstream units below, barrels per calendar day.

Upgrading

Vacuum distillation

7,000 sd

Treating — meets sulfur specs

Hydrotreating — other distillate

9,500 sd

Production capacity · barrels per stream day

Asphalt road oil · 2,000 b/sd Hydrogen · 4 MMcf/d Lubricants · 7,000 b/sd Sulfur · 3 short tons/day

Crude slate

Local naphthenic crude oil (per Calumet 10-K).

Base oils

Group V naphthenic · 6,900 b/d

FY2025 10-K: 208-acre site, 10,000 bpd aggregate crude throughput capacity, seven major processing units, about 650,000 barrels of storage; processes naphthenic crude oil into lubricating oils and asphalt, refining high quality naphthenic lubricating oils at numerous distillation ranges, and makes feedstock for Shreveport's ULSD; produces no transportation fuels. Total facility production 5,428 bpd (2025), 5,107 (2024), 5,631 (2023); feedstock runs 7,485 bpd (2025). Calumet's investor page calls Princeton its flagship refinery, producing a premium line of naphthenic base and process oils plus refrigeration, shock absorber and electrical insulation oils, with truck and rail car service throughout the country.

API group	b/d	As published	Basis	In effect	Source
Group V naphthenic ★	6,900	6,900 b/d Trade-press figure ('about 6,900 b/d of naphthenic base oil capacity') in a 2009 Lube Report article on Calumet marketing LyondellBasell naphthenics; no company or permit figure found. Preferred over the 2002 figure as the more recent.	estimate	2009-10-07	Lubes'n'Greases (Lube Report) low
Group V naphthenic	7,000	7,000 b/d 2002 Lube Report article: Princeton capacity 7,000 b/d with a plan to raise it to 9,000 b/d when Shreveport exited naphthenics; the 9,000 b/d target was not confirmed by any later source opened. Not preferred: older than the 2009 figure.	estimate	2002-09-25 → 2009-10-07	Lubes'n'Greases (Lube Report) low

Process route: Naphthenic hydrotreating
Feedstock: Naphthenic crude
Brands: HYDROCAL, CALSOL, CALTRAN, CALUMET RO
Ships by: truck, rail, pipeline
Owners: Calumet, Inc. 100%

Grades offered

Group	Grade	cSt @100 °C	Brand	Source
Group V naphthenic	CALSOL 5 Series, CALSOL 8 Series, CALSOL P9 Series and HYDROCAL naphthenic oils (multistage hydrotreating above 2,500 psi)	—	CALSOL / HYDROCAL	Calumet, Inc. medium
Group V naphthenic	CALTRAN transformer oils 60-08, N60-08, 60-30, 60-15, N60-15, N60-30, 60-00 Group U; VOLTESSO 35 and N36	—	CALTRAN	Calumet, Inc. medium
Group V naphthenic	CALUMET RO mineral refrigeration oils RO6, RO10, RO15, RO30	—	CALUMET RO	Calumet, Inc. medium

Base oil events and projects

2024-07-10 Ownership change
Calumet, Inc. completed the conversion from Calumet Specialty Products Partners, L.P.; the Partnership became a wholly owned subsidiary and common units were exchanged for an equal number of common shares. actual 2024-07-10 Calumet, Inc. via SEC EDGAR high

Not established from public sources: No current public base oil capacity: the 10-K gives crude capacity (10,000 bpd) and production (5,428 bpd in 2025) but no naphthenic base oil capacity; the 6,900 / 7,000 b/d rows are 2009 and 2002 trade-press figures (EIA-820 lubricants figure 7,000 b/sd is the cross-check). Brand-to-plant attribution (CALSOL, HYDROCAL, CALTRAN, CALUMET RO) is inferred: calumet.com lists them as naphthenic, transformer and refrigeration oil lines and the investor page says Princeton makes naphthenic base/process oils, refrigeration and electrical insulation oils, but no Calumet page opened states which plant makes which product. Pipeline is recorded because the 10-K says crude arrives via the Plains pipeline system; finished products move by truck and railcar only. No turnaround, outage, price notice or project since 2020 was found on a page opened (search snippets mention a February 2021 cold-weather outage and an undated November turnaround, neither opened). No LDEQ permit was located. 1 value is held back because only a paid source supports it.

Crude in & products out

Direction	Mode	Route	Point / origin	Products	Source
crude in	pipeline	Plains Pipeline system Calumet's 10-K states the Princeton refinery's feedstock is 'Local naphthenic crude oil' delivered by 'Tank truck, railcar and Plains Pipeline.'		crude	source
crude in	truck	Tank truck	local naphthenic crude producers	crude	source
crude in	rail	Railcar		crude	source
products out	truck rack	Calumet Princeton Refining truck rack (IRS terminal T-72-LA-2389) The IRS list of active fuel terminals dated 30 August 2026 shows terminal T-72-LA-2389, Calumet Princeton Refining, at 10234 Hwy 157, Princeton, LA. It is the only IRS terminal listed in Princeton, LA. The site provides truck and rail car services throughout the US.	10234 Hwy 157, Princeton, LA	lubricants	source
products out	rail	Railcar	Princeton, LA site	lubricants	source

Pipeline reach

No tariff origin point is linked to this refinery yet.

Substitutes

No other refinery shares a tariff system with this one in our data.

Events

2024-07-10 Ownership change base oil
Calumet, Inc. completed the conversion from Calumet Specialty Products Partners, L.P.; the Partnership became a wholly owned subsidiary and common units were exchanged for an equal number of common shares. source

Rates are pipeline line-haul transcribed from published FERC tariffs; every figure cites its tariff and item. Cost to serve (netback) adds origin spot price and destination fees. "Confirmed" links match a tariff delivery point to the facility; "same city" means the point is in the facility's city — plausible, not proof; "per research" means the facility's research profile names the pipeline as an outlet.