Free tools
Free oil and gas tools
Small utilities for people who work with well and emissions data. Each shows the factor it applied and where that factor came from. No sign-in, and nothing you type is stored.
Mcf, MMcf, Bcf, scf, MMBtu, therms and gigajoules, with the heating value under your control. Also converts methane and nitrous oxide to CO2e against a GWP basis you pick.
Exhaust methane from compressor drivers, from field measurement of 133 engines. Shows the measured factor against AP-42, GHGI and GHGRP, which disagree by three orders of magnitude about the same engine.
Methane and VOC from a TEG dehydration unit, from a validated process model rather than one still-vent factor. Shows how much circulation rate and flash gas routing change the answer.
What wells actually measured, against the 1,037 Btu/scf national average every converter defaults to. Colorado runs 17 percent higher.
Splits a US API well number into its state, county, well, sidetrack and completion parts, names the county, and links the agency that issued it.
The county digits of a US API well number for every state, with what the number does and does not tell you about where the well is.
Which of OOOO, OOOOa, OOOOb or OOOOc covers a site, from the date construction or modification commenced. A boundary date falls in the earlier subpart, the way the 40 CFR Part 60 headings are written.
Whether a facility needs an SPCC plan and whether it can still self-certify, from storage capacity, reach to navigable waters and discharge history. Names the 40 CFR 112 test behind each answer.
What AP-42 publishes for a source type, in the units you report in, with the data rating EPA gave each factor. Says so where AP-42 publishes nothing, rather than returning a zero.
Single conversions
The full converter handles every unit at once. These pages answer one pair, with the chart and the worked number for that pair alone.
Why these show their working
The global warming potential of methane moved from 25 to 28 under 40 CFR 98 Table A-1 on 1 January 2025, and guidance quoting the old number is still in circulation. If a tool will not tell you which value it used, you cannot tell whether its answer matches what you have to file. So each one here names the rule, the value and the date it took effect.