Market data

Rack Pricing Data

MARC assessments as data. Twice daily rack and select spot price assessments, plus Rack Market Heards, delivered straight into your pricing, trading, and back office systems.

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Twice daily assessments API, FTP, and web delivery CSV, XLSX, and JSON

marc_assessments_2026-07-10_TE.csv

	A	B	C	D	E	F	G	H	I	J	K	L
	price_code	terminal_city	spot_market	padd	specification	rvp	brand	terms	marc_cpg	change_cpg	date	time_et
1	INMDC00	Hammond, IN	Chicago	2	ULS No. 2 Clear	—	U	Gross	344.19	−1.71	2026-07-10	16:59
2	INMGR87	Hammond, IN	Chicago	2	RFG Unl 87 E10	9.0	U	Gross	276.29	−0.44	2026-07-10	16:59
3	INMGR93	Hammond, IN	Chicago	2	RFG Unl 93 E10	9.0	U	Gross	324.70	−0.45	2026-07-10	16:59
4	INMUC87	Hammond, IN	Chicago	2	Conv Unl 87 E0	9.0	U	Gross	298.18	−0.55	2026-07-10	16:59
5	INMUC91	Hammond, IN	Chicago	2	Conv Unl 91 E0	9.0	U	Gross	334.09	−0.60	2026-07-10	16:59
6	NJNDC00	Newark, NJ	New York Harbor	1	ULS No. 2 Clear	—	U	Gross	357.52	−1.67	2026-07-10	16:59
7	NJNGR87	Newark, NJ	New York Harbor	1	RFG Unl 87 E10	9.0	U	Gross	275.78	−0.41	2026-07-10	16:59
8	NJNGR93	Newark, NJ	New York Harbor	1	RFG Unl 93 E10	9.0	U	Gross	329.57	−0.48	2026-07-10	16:59
9	NJNUC87	Newark, NJ	New York Harbor	1	Conv Unl 87 E0	9.0	U	Gross	292.31	−0.51	2026-07-10	16:59
10	NJNUC93	Newark, NJ	New York Harbor	1	Conv Unl 93 E0	9.0	U	Gross	312.81	−0.59	2026-07-10	16:59
11	OKTDC00	Tulsa, OK	Group 3	2	ULS No. 2 Clear	—	U	Gross	348.30	−1.65	2026-07-10	16:59
12	OKTGC87	Tulsa, OK	Group 3	2	Conv Unl 87 E10	9.0	U	Gross	271.24	−0.49	2026-07-10	16:59
13	OKTGC91	Tulsa, OK	Group 3	2	Conv Unl 91 E10	9.0	U	Gross	288.47	−0.53	2026-07-10	16:59
14	OKTUC87	Tulsa, OK	Group 3	2	Conv Unl 87 E0	9.0	U	Gross	289.72	−0.57	2026-07-10	16:59
15	OKTUC91	Tulsa, OK	Group 3	2	Conv Unl 91 E0	9.0	U	Gross	308.62	−0.58	2026-07-10	16:59
16	TXHDC00	Houston, TX	Gulf Coast	3	ULS No. 2 Clear	—	U	Gross	353.73	−1.67	2026-07-10	16:59
17	TXHGR87	Houston, TX	Gulf Coast	3	RFG Unl 87 E10	9.0	U	Gross	272.24	−0.48	2026-07-10	16:59
18	TXHGR93	Houston, TX	Gulf Coast	3	RFG Unl 93 E10	9.0	U	Gross	347.89	−0.48	2026-07-10	16:59
19	TXHUC87	Houston, TX	Gulf Coast	3	Conv Unl 87 E0	9.0	U	Gross	287.82	−0.51	2026-07-10	16:59
20	TXHUC93	Houston, TX	Gulf Coast	3	Conv Unl 93 E0	9.0	U	Gross	308.31	−0.55	2026-07-10	16:59

Overview

Rack Pricing Data is the machine readable form of the Mills price complex: every twice daily Mills Assessed Rack Clearing (MARC) Price assessment for each covered product specification by rack terminal city, select Mills spot market assessments, and the Rack Market Heards that carry the market color behind the prints.

Each MARC assessment is a weighted average built from futures, spot, posted rack, term, and day deal transactions, published twice a day and backed by an openly published methodology, which results in a benchmark that tracks where product actually cleared.

Delivery matches your stack. Pull it through the API, sync it over FTP, or download it from the web, in CSV, XLSX, or JSON. Every series is keyed to a unique Mills code, so it lands cleanly in ETRM, pricing, and settlement systems.

Key information

Use cases

Benchmark to the clearing price

Jobbers and retail end users need to know where product actually cleared at a terminal city, in order to set internal transfer prices and judge whether they are buying and selling well. However, commonly referenced rack indexes are built from supplier postings. A posted price is an asking price, and on active days real volume moves at negotiated levels below the post. An index built only from postings can also swing on a single distressed reseller load that no buyer with real volume can repeat.

Mills Assessed Rack Clearing (MARC) Price Assessments publish a twice daily weighted average built from futures, spot, posted rack, term, and day deal transactions, which results in a benchmark that reflects the market clearing level. Buyers indexed to MARC can see when a posted low still sits above the market, and sellers can see when a low print is too thin to chase.

Automate settlement and transfer pricing

Wholesalers, jobbers, and retail end users need assessed prices flowing into their own systems, in order to mark deals, set internal transfer prices, and settle invoices without manual rekeying. However, view only reports and PDFs force analysts to copy numbers by hand, and stale copies drift out of sync with the market.

Mills Rack Pricing Data delivers every assessment as a keyed, timestamped record over API and FTP, which results in settlement, deal marking, and transfer pricing that run on live data.

Benefits

The full MARC complex: rack assessments across PADDs 1, 2, and 3 today, PADD 4 in part, and PADD 5 coming soon.
Spot context included: New York Harbor, US Gulf Coast, Group 3, and Chicago spot assessments ride in the same feed.
Market color: Rack Market Heards, a feed of heard deals and market talk across CONUS, exclusive to this product.
Built for machines: unique Mills codes, a consistent schema, and CSV, XLSX, and JSON formats.

Details

Access & subscription pricing

Standard subscription

Contact us

Billed annually

Component coverage

Component	Rack Pricing Data	Atlas	Gauge	Routing Model	Rack Price Report	Reference Data
Physical infrastructure map (Continental US)
Rack terminals	Not included	Included	Partial	Partial	Not included	Included
Pipelines	Not included	Included	Partial	Partial	Not included	Included
Pipeline interconnects	Not included	Included	Partial	Partial	Not included	Included
Railways	Not included	Included	Partial	Partial	Not included	Included
Marine highways	Not included	Included	Partial	Partial	Not included	Included
Refineries	Not included	Included	Partial	Partial	Not included	Included
Ethanol plants	Not included	Included	Partial	Partial	Not included	Included
Storage tanks	Not included	Included	Partial	Partial	Not included	Included
Regulatory layers
Fuel regulation zones (RFG, CARB, CBG, TxLED)	Not included	Included	Partial	Partial	Not included	Included
RVP and seasonal spec calendar	Not included	Included	Partial	Partial	Not included	Included
Reference data
Company directory	Not included	Included	Partial	Partial	Not included	Included
People and contact information	Not included	Included	Not included	Not included	Not included	Included
Spot-to-rack price formulas	Not included	Included	Included	Included	Not included	Included
Terminal fees	Not included	Included	Included	Included	Not included	Included
Pipeline tariffs and line loss	Not included	Included	Included	Included	Not included	Included
Rail freight rates	Not included	Included	Included	Included	Not included	Included
Marine freight rates	Not included	Included	Included	Included	Not included	Included
Trucking freight rates	Not included	Included	Included	Included	Not included	Included
Fuel taxes (federal and state)	Not included	Included	Included	Included	Not included	Included
Refined product specifications	Not included	Included	Included	Included	Not included	Included
Code Cross Reference Service (CRS)	Not included	Included	Included	Included	Not included	Included
Rack price assessments (MARC)
East Coast (PADD 1)	Included	Included	Not included	Not included	Included	Not included
Midwest (PADD 2)	Included	Included	Not included	Not included	Included	Not included
Gulf Coast (PADD 3)	Included	Included	Not included	Not included	Included	Not included
Rocky Mountain (PADD 4)	Partial	Partial	Not included	Not included	Partial	Not included
West Coast (PADD 5)	Coming soon	Coming soon	Not included	Not included	Coming soon	Not included
Spot price assessments
New York Harbor	Included	Included	Not included	Not included	Included	Not included
US Gulf Coast	Included	Included	Not included	Not included	Included	Not included
Group 3 (Mid-Continent)	Included	Included	Not included	Not included	Included	Not included
Chicago	Included	Included	Not included	Not included	Included	Not included
Los Angeles	Coming soon	Coming soon	Not included	Not included	Coming soon	Not included
San Francisco	Coming soon	Coming soon	Not included	Not included	Coming soon	Not included
Pacific Northwest	Coming soon	Coming soon	Not included	Not included	Coming soon	Not included
Market color
Rack Market Heards	Included	Not included	Not included	Not included	Not included	Not included

Included — full access within the product Partial — the subset that product's workflows need Coming soon — on the roadmap Not included — outside this product

More from Mills

Reference Data

Market data

Bulk and API access to every terminal, company, code, spec, tariff, and calendar behind Mills price assessments.

Rack Price Report

Reports

A twice daily PDF report publishing Mills Assessed Rack Clearing (MARC) Prices for gasoline, diesel, ethanol, and other rack specifications at over 100 rack terminal cities across the Continental United States.

Atlas

Market intelligence

The US fuel supply chain on one live map: terminals, refineries, pipelines, and spot markets, with prices and routing in place.

Beta

Atlas Fuel Routing & Logistics Model — programmatic multimodal route pricing

Routing Model

API

Programmatic access to the Atlas routing engine. Price origin to rack movements in cents per gallon from your own applications.

Beta

Gauge

Contract analytics

Upload a supply contract and gauge its pricing structure line by line against Mills canonical spot-to-rack formulas.

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Calendar

Regulatory intelligence

The seasonal RVP schedule for every terminal city. See which vapor pressure ceiling binds each gasoline spec across the year. Included free with Atlas.

Rack Pricing Data

Overview

Key information

Use cases

Benchmark to the clearing price

Automate settlement and transfer pricing

Benefits

Details

Access & subscription pricing

Component coverage

More from Mills

Reference Data

Rack Price Report

Atlas

Routing Model

Gauge

Calendar

Put the clearing price in your systems