Okla. Stat. tit. 83, § 83-119: Measurement standards for retail sales of natural gas

A. The Department of Labor shall adopt rules and procedures

requiring that retail sales to the public of compressed natural gas

and liquefied natural gas used as a motor vehicle fuel are dispensed

in the following manner:

1. Compressed natural gas (CNG) shall be dispensed in gasoline

gallon equivalent (GGE) units. A GGE of CNG shall initially be set

at 5.66 (five and sixty-six hundredths) pounds and shall remain at

that level until changed by the Department through the

administrative rules process; and

2. Liquefied natural gas (LNG) shall be dispensed in diesel

gallon equivalent (DGE) units. A DGE of LNG shall initially be set

at 6.06 (six and six-hundredths) pounds and shall remain at this

level until changed by the Department through the administrative

rules process.

B. The Department of Labor is hereby authorized and directed to

promulgate rules as may be necessary to carry out the provisions of

this section. If it subsequently becomes necessary to revise,

through rule, the standards established in paragraphs 1 and 2 of

subsection A of this section due to changes in the energy contents

of motor fuels, the Department shall take into consideration whether

the National Conference on Weights and Measures has adopted similar

standards for dispensing CNG and LNG and whether those standards use

different values for GGE and DGE units. If the National Conference

on Weights and Measures has adopted different GGE and DGE units, it

shall be presumed that such standards should also be adopted for

Oklahoma unless good cause is shown otherwise.