How does a new TABS supplier impact Demand?
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A new supplier on TABS increases our market coverage of BOLs and as a result increases our demand coverage. New supplier volumes are included in Demand as soon as we start receiving BOLs.

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How does a supplier leaving TABS impact Demand?
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A supplier leaving TABS would result in a drop in market coverage. Also, it would impact terminal/supplier counts and overall demand we report.

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How far back can historical data be requested?
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Rack, Padd, and Terminal/Supplier endpoints have historical data going back to 01/01/2017.

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How is Coverage Factor data used?
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What is the method for comparing diverse regional data such as volume in PADD1 vs. US on a specific day?  The ratio of PADD1 to US would be (PADD1/padd1_coverage)/(US/US_coverage).  To compare, divide each volume by the coverage factor to get scaled values. How can I compare Year over Year volumes within the same PADD?  The

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How is the RackAverage calculated?
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We first determine what the BOL average is by grade at the state level. Next, we take the BOL average and multiple that by the number of liftings for the grade for the rack location. Example – For the Month of May 2022 Cedar City has less than 3 suppliers for #2 Diesel. As a

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How many rack locations are reported on?
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The Rack endpoint has volume data for 305 rack-city locations. Individual terminal data within a city is not available.

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How often is the data updated in the API?
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Volume data is aggregated daily from 12:00 am – 11:59:59 pm local terminal time and calculated at 3:00 am central time the following day.

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If the max number of records is 5,000 per page, how can I make a larger request spanning multiple months?
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The Demand API supports paging, so if a request is made that results in 20,000 records, this data will be broken up by 5,000 per page. This is accomplished by using limit/offset or page/pageSize. Choose only one otherwise a 400 bad request error will occur if both limit/offset and page/pageSize are submitted on the same

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Is Volume data reported on net or gross gallons?
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The API volume data is based on net gallons.

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What are the grades reported on in Demand?
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Grade Definition Aviation Commonly known as Avgas, it often has an octane rating of 100 and can fluctuate some. Used for general aviation purposes like small aircraft and light helicopters. Midgrade Gasoline products that have an octane range between 88-89, it varies by location. Common products are conventional, conventional 10% ethanol, reformulated 10% ethanol, and

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