Compliance

The EPA Methane Rule for Oil and Gas: What Operators Must Track

The EPA methane rule for oil and gas shifted leak detection, monitoring and recordkeeping onto the operator. The standards, known in the field as OOOOb and OOOOc, cover new and existing sources under 40 CFR Part 60. For a small operator the practical effect is simple: more inspection rounds, more repair jobs, and a paperwork trail that has to hold up when the inspector walks in. Here is what the compliance workload looks like and what you need to track.

What the methane rule covers

The rule reaches the equipment that makes up a typical production site. New and existing well sites are in scope, along with the compressors, pneumatic controllers and storage vessels that sit on them.

That list matters because each piece of equipment carries its own inspection duties. A compressor station has different leak points than a tank battery. Pneumatic controllers vent gas as part of normal operation, so they get looked at on their own schedule. Storage vessels hold liquid hydrocarbons and the vapors that need to stay controlled.

For the hardware side of these sites, see the wellhead maintenance best practices guide and the gas compression equipment guide.

The leak detection and repair rounds

Leak detection and repair, or LDAR, is the core of the workload. Crews walk the site with monitoring instruments and check the equipment for leaks. When a leak shows up, it gets tagged, repaired and rechecked.

The rounds are not optional extras. They are the mechanism the rule uses to find methane that escapes during normal operation. Every round produces a result: either the equipment passed, or a leak was found and a repair record was opened.

The monitoring schedule concept

The rule works on a schedule of recurring checks. Some equipment is checked monthly, some quarterly, depending on the source type and how the site is equipped. The frequency is set by the rule for each category of equipment, and the operator's job is to hit those dates.

The pattern is what matters. Checks repeat on a cycle, and the cycle does not stop while the equipment is in service. Missed rounds are the fastest way to fall out of compliance, because the record will show the gap.

Where the data comes from

You cannot run a monitoring program without knowing what is on the site. The equipment inventory is the starting point. It lists every well, compressor, controller and vessel, and it defines what gets checked and when.

Well status feeds the picture too. A shut-in well is treated differently from a producing one, and the rule distinguishes between sites based on their status. Tank gauging records show what moved through the storage vessels, which matters for vapor control at tanks fed by three phase separators.

The recordkeeping burden

Recordkeeping is where the rule gets heavy. The operator must keep monitoring logs that show each check was done. Repair records must show what was found, what was fixed and when. Both sets of records have to be kept for the retention period the rule sets out.

The records are not internal paperwork. They are the evidence of compliance. If an inspector asks for the monitoring log and it does not exist, the assumption is that the round never happened.

Who is responsible

The operator carries the responsibility, even when the work is contracted out. Many operators hire third parties to run LDAR rounds and do repairs. That is normal practice. But the operator's name goes on the compliance record, and the operator is the one answerable to the agency.

So contractor reports need to be checked, signed off and folded into the operator's own records. A contractor's field sheet only becomes evidence of compliance once it lands in the operator's files.

The compliance calendar

The rule runs on a calendar. Monitoring rounds fall on their scheduled dates, repairs have their own windows, and records pile up through the year. The cycle resets and repeats, so the calendar is the tool that keeps the program alive.

Inspector visits can happen at any point. The operator who can pull up the monitoring log, show the repair records and point to the equipment list has little to fear from the visit. The one who cannot will have a long conversation.

How inspection records stay organized

The equipment list is the spine of the record system. Every monitoring round, every leak tag and every repair should attach to a specific piece of equipment. When records are organized that way, answering an inspector's question takes minutes instead of days.

Field service software helps here. OpsFlo, which tracks field tickets, dispatch, approvals, timesheets and documents for oilfield service companies, lets crews log each monitoring round against the equipment list so the record is ready for the inspector.

Start with the equipment inventory. Build the schedule from it. Log every round, every leak and every repair against it. That simple structure is what turns a heavy compliance workload into a manageable one.

Sources and further reading

• EPA: Controlling air pollution from oil and natural gas operations
• eCFR 40 CFR Part 60: Standards of performance for new stationary sources