Previously, informational letters (ILs) were mostly used to announce a new regulatory direction or technical requirements. A few of them, however, contained requirements. Although these documents are no longer published, some of them are still in effect. If you notice a broken link or out-of-date email address or phone number, please contact our Customer Contact Centre.
| Number | Name | Status | Date Sort ascending |
|---|---|---|---|
| IL 91-05 | Good Production Practice Conventional Crude Oil Pools | In Effect | |
| IL 90-21 | Oil and Gas Development - Rumsey Block | In Effect | |
| IL 90-03 | Applications for Special MRLs, GPP, and GOR Penalty Relief | In Effect | |
| IL 88-01 | Submission of Mud Log Data [Rescinded by Directive 080: Well Logging] | Rescinded | |
| IL 87-12 | Horizontal Wells Conventional Oil and Gas Pools | In Effect | |
| IL 85-12 | Oil Sands Primary Production: Well Spacing Primary Recovery Scheme Approvals | In Effect | |
| IL 85-10 | Maximum Daily Rates of Production for Gas Wells | In Effect | |
| IL 84-11 | Approval, Monitoring, and Control of Sulphur Storage Sites | In Effect | |
| IL 83-02 | Procedure for Submissions: Annual Reservoir Review for Gas Pools [Rescinded by Bulletin 2019-25] | Rescinded | |
| IL 82-13 | Off-Target Penalty Factors for Exploration Wells | In Effect |
