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MU·02 Oil & Gas
The discipline of establishing, defensibly, how much was produced, whose it was, and what must be reported — from the metering point through allocation to the entitlement statement and the regulatory return.
Three questions, in order: how much came out, whose share it is, and what has to be declared. Each is answered by a different system, and the industry’s persistent difficulty is that all three have to agree at the end of the month in front of partners and a regulator who are entitled to disagree.
The chain runs from physical measurement at a metering point, through allocation across commingled streams, into entitlement calculations governed by contract, and out into partner statements and statutory reporting. A weakness anywhere in that sequence surfaces as a variance nobody can source.
Allocation is arithmetic performed under a legal instrument. The joint operating agreement, the transportation and processing agreements, and the licence conditions each impose rules on how a commingled volume is divided. Two operators can measure identically and still owe different numbers, correctly.
This is why hydrocarbon accounting cannot be solved by better meters alone, and why software that models measurement without modelling the agreements produces answers that are precise and wrong.
We treat the chain as a single record rather than a sequence of handovers, which is the same principle behind our systems of record work. Restatements are first-class: a correction upstream travels the whole way, including into statements already published, with the history preserved rather than overwritten.
The capability sits alongside production allocation and fiscal metering, and shares an engineering arm with enterprise integration, because the failure mode is nearly always a join between systems rather than a calculation inside one.
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Questions
The discipline of determining how much hydrocarbon was produced, how it is divided between entitled parties under the governing agreements, and what must be reported to partners and regulators — with evidence sufficient to withstand audit.
Allocation is one stage within it: dividing a commingled measured volume between contributing sources. Hydrocarbon accounting spans the whole chain from measurement through entitlement to statutory reporting.
Because allocation is governed by contract. Joint operating, transportation and processing agreements impose different rules, so identical measurements can legitimately produce different entitlements.
In our experience, definitional drift between systems and production days that close at different moments — not inaccurate meters.
Both, and they are difficult to separate. The group's technology arm builds the systems, and the oil and gas platform supplies the operating obligations they were designed against.
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That is usually a definition, not a meter.