HY-BON/EDI Blog: Quad O Compliance and Vent Gas Management

Jul 31, 2017

Oil and gas operators prepare air emission inventories for their facilities for a variety of reasons. Air emission inventories gather data from facilities so that air emissions can be quantified. These reasons for conduct an air emission inventory include the following:

  • Air permitting for new facilities and modifications to existing facilities
  • Annual criteria air pollutants and hazardous air pollutants (HAP) inventories for major sources
  • Greenhouse gas (GHG) inventories
Oil and Gas Air Emission Inventories

Jun 9, 2017

In a Federal Register Notice dated June 5, 2017, the EPA granted a reconsideration and partial stay of the Oil and Natural Gas New Source Performance Standards in NSPS OOOOa. Consult the Federal Notice EPA–HQ–OAR–2010–0505; FRL–9963–40–OAR for details.

NSPS OOOOa 90-Day Stay Finalized

Apr 21, 2017

The Texas Commission on Environmental Quality (TCEQ) is the environmental agency that administers air quality regulations and permitting programs in Texas. Oil and gas (O&G) production facilities are required to obtain, from the TCEQ, an air permit prior to construction.

Oil and Gas Air Permitting in Texas

Mar 14, 2017

Obtaining and complying with air permits is critical part of the operation of oil and gas production facilities. Air permits are processed, approved and enforced by State environmental regulatory agencies unless located on Federal lands or waters. Regardless of the regulatory agency involved, there are several common things an operator can do to ensure easier permit approval and compliance.

Oil and Gas Air Permitting Helpful Tips

Feb 23, 2017

Federal and State regulatory rules require oil and gas (O&G) operators to reduce natural gas venting and leaks from their operations. NSPS OOOO has standards for VOC emissions from storage tanks, compressor seals, pneumatic controllers and fugitive leaks (primarily natural gas processing). NSPS OOOOa has standards for VOC and methane emissions from storage tanks, compressor seals, pneumatic controllers, pneumatic pumps and fugitive leaks. Several State environmental regulatory agencies have their own State specific regulations for venting and leaks.

Identify, Quantify and Rectify (IQR) Venting and Leaks

Jan 25, 2017

OVERVIEW: The below is BLM reasoning for the rule. HY-BON/EDI can help you through it.  The Bureau of Land Management (BLM) has updated its regulations to reduce the waste of natural gas from flaring, venting, and leaks from oil and gas production operations on public and Indian lands.  The final requirements, which will be phased in, will help curb waste of our nation’s natural gas supplies; reduce harmful air pollution, including greenhouse gases; and provide a fair return on public resources for federal taxpayers, Tribes, and States.

Jan 6, 2017

Vapor combustion units (VCU) also called enclosed combustion devices or enclosed flares are widely used in oil and gas operations to control vent gas VOC and methane emissions. VCUs are a good alternative control device when a vapor recovery unit (VRU) is not feasible for the application. Many operators prefer VCUs over candlestick (open tipped) flares since properly designed and sized VCUs do not have a visible flame, minimize or eliminate any smoke and have a far greater destruction efficiency.

Enclosed Vapor Combustors Units and Air Quality Regulations

Dec 12, 2016



Final Rule Limits Venting, Flaring and Leaking from Oil & Gas Operations to Reduce Waste and Harmful Emissions, Provide Fair Return to Taxpayers. The Mineral Leasing Act requires the BLM to ensure that operators “use all reasonable precautions to prevent waste of oil or gas.”  Important elements of the final rule include:

Dec 8, 2016

(Updated December 18, 2019)


For oilfield storage tanks, NSPS OOOO and OOOOa have similar requirements regarding applicability, emission limitations, recordkeeping and reporting requirements. Some exceptions for storage tanks are different applicability dates for the two rules and NSPS OOOOa has additional requirements for closed vent systems (piping) used to control NSPS OOOOa affected facility storage tanks.

These rules affect storage tanks that handle crude oil, intermediate hydrocarbon liquids, condensate or produced water.

Below is a summary of key parts of the rules. Unless specified, the requirements apply to NSPS OOOO and OOOOa. Consult the written rules for details.

NSPS OOOO and OOOOa and Storage Tank Requirements - revised 28 Dec. 2019

Nov 4, 2016

The continued regulation of greenhouse gases (GHGs) in all sectors of the economy will continue in the future. Expect more direct regulatory command and control regulations (e.g., NSPS OOOOa), voluntary initiatives and other methods (e.g., taxes) to further reduce GHGs.

Based on this, it is prudent for all companies to quantify and track their GHG emissions to prepare for future governmental impacts. This issue not only affects traditional industries that emit GHGs but also affects all sectors of the economy that consume products and services that generate GHGs.