Author Archives: Jeri Masterson

Pro Rata Allocation 101

Posted on April 19, 2011 by Jeri Masterson

If you operate a gas gathering system, you’ll want to understand how to allocate receipt meters (gas coming in) and delivery meters (gas going out). The math is the same for both. Continue reading →

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What is a refinery “crack?” | Crude Oil Trading, Refined Products

Posted on January 18, 2011 by Jeri Masterson

The refinery uses a controlled explosion in the catalytic cracker to break very long chain crude oil hydrocarbon molecules into shorter, more useful products such as gasoline and diesel. The catalytic cracker is called the “cat cracker,” and the gross margin over the refinery is called the “crack spread.” Continue reading →

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Glossary: Crude Oil Trading, Refined Products

Posted on January 12, 2011 by Jeri Masterson

A quick glossary of crude oil and refined products traders covering from “wellhead to burnertip.” Continue reading →

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Spreadsheet Accuracy: Gas Gathering, Gas Marketing, Gas Accounting

Posted on January 1, 2011 by Jeri Masterson

I’d already asked one of our current SNG super users, who had also previously done implementations for other companies, about what percentage of spreadsheets have errors. He estimated 90%, so I went looking for some actual statistics, and here’s what I found: Continue reading →

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What is Fractionation? | Natural Gas and NGL Marketing

Posted on December 20, 2010 by Jeri Masterson

Fractionation works based on the different boiling points of the different hydrocarbons in the NGL stream. Essentially, fractionation occurs in stages consisting of the boiling off of hydrocarbons one by one. Continue reading →

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Natural Gas Marketing | NGL Marketing: What is “Ethane Rejection?”

Posted on December 20, 2010 by Jeri Masterson

Summary – Ethane rejection is the term used by natural gas processors to describe selling ethane as a part of the residue gas stream rather than as a natural gas liquid (NGL). Residue gas or pipeline quality gas is used … Continue reading →

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Natural Gas Marketing Software: Is it worth it?

Posted on November 19, 2010 by Jeri Masterson

  Spreadsheets are cheap. Software is expensive! How do you know whether you can justify a gas marketing software system for your business? Here are three ‘brain starters’ to help you: 1. Are you growing by acquisition? Some companies realize they … Continue reading →

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