API |
  
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API |
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API (America Petroleum Institute) is an optional parameter consisting of 8 digits.
An API number is assigned by the Texas Railroad Commission to each well that qualifies for a well-level exemption. In Severance Tax reporting. The API number is only required for:
•Two-year inactive lease exemption (Type 3)
•Three-year inactive well exemption (Type 7)
•Reactivated orphan well exemption (Type 8)