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# Company Programs
• While

we do have non-regulatory

programs, this data only covers regulatory

programs
- Generally, non-regulatory

programs use Optical Gas Imaging (OGI), sites and frequency determined by ranking of likelihood of emissions 

## • Company

programs for

camera operators, including written guidance and

a continuous learning

group

• We

are testing

newer technologies with the potential to survey wide

areas at a lower cost

- Aim of

new technologies is to reduce surveying costs by surveying wider

areas or automating

survey process

### Chevron Program Costs Exceed EPA Estimates • Leak rates( percentage of components leaking) is below 

### 0.10%. (highest basin

was 

### 0.34%, lowest was 

### 0.04%) • Cost

per ton of CH4

ranges from $1 million to $30 million (or $500,000 to $13 million

per 

### MCF methane) • (NOTE- higher costs for implementation phase)

## Key Learnings • OGI is generally less costly to operate than Method 21 (capital costs

are higher for OGI)
• Administrative burden (recordkeeping, QA/QC) can drastically impact cost of the program • Most leaks detected

are from compression,

a very small percentage at the wellhead
• Regulatory

programs have

a higherrecordkeeping cost

# Appendix • Methodology • IR Camera 

## Guide • State Regulatory Programs 

## at

a Glance

# Methodology
• Leak Rate= number of components leaking/total number of components - Component count either actual

or based

on estimate (count at a sample of sites,

or GHGRP component count estimate) 

# • Cost

per ton =cost per ton/volume of leaks

- Started with GHGRP Leak Total with

no LDAR

program.

- Leak rate is multiplied by GHGRP leak total which gives total volume emitted. - Cost is either contractor or internal cost.
• Cost estimates

are at a minimum IR camera surveyor time. In some **cases~** 

## we are able to make costs more accurate by including recordkeepingl vehicle miles traveled and IT costs.

# IR Camera Guide • Written guidance, and quarterly update meetings for all

company camera operators • Guidance

covers: - Case Studies -Training Requirements - Maintenance and Baselining
- Safety Considerations - Equipment Checklist -Temperature/Wind - Various ApplicationsColorado NOTEimplementation began in 2015 Pennsylvania Method AVO and Method 21 or IR camera Sources

· Covered New and existing AVO and IR camera ·- Compressor stations, processing facilities {gas)

· Ranges from one time to monthly, based on expected . 

### . emtss1ons Quarte.rly for com - pressorstations and proce - ssing Annual for

w · ellpad, initial within 60 I • daysCalifornia- San Joaquin Valley Method 21 and AVO Method 21 San Joaquin Valley Air Pollution Control District, heavy and light oil production {ozone nonattainment) Steam drive crude Initial within 90 days, quarterly ' for first year, skip period allowed if less than 2.0% of components leak Weekly to daily AVO, Annual for heavy oil instrument, quarterly for light oil instrument Yearly; Quarterly for components with moving parts {including periodically manipulated valves) .Colorado Frequency Charts Well Produdicft fad iti es wilhaul: storage **Tanks~** Wei Prod.ucti Facilitie£ Wfn-tOUT Sta'age Tanks (tpy) O<x<6 6 <X< 12 12 <X< 20 **x~20** AI JAM Inspection Freauency One time Annually Qwarterty M m 1hly AV I lnspec1inf1 freauenc.Y WeU **Prod' ~**  Wei Producti on Facilities WI TI-l Stcwage Tanks (tpy) {)<X< 6 6 <X< 12 12 <X< 50 X> 50 - with Sroraae r

.. A I MM AVO Inspection I ns_pection F requency frequency One - time Monthly Annually Mon1hty Quarterly **Man~ly** M oo 1Miy Monthly ---- ----- -