Definition(s)
Productive Horizon
Any stratum known to contain oil, gas, or geothermal resources in commercial quantities.
Source: API BULLETIN E3, Environmental Guidance Document: Well Abandonment and Inactive Well Practices for U.S. Exploration and Production Operations, First Edition, January 1993 (Reaffirmed June 2000). Global Standards
Productive Horizon
Any stratum known to contain oil, gas, or geothermal resources in commercial quantities in the area.
Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations