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Applicable to all Oil & Gas Operators GUIDELINES FOR THE DESIGN, CONSTRUCTION, OPERATION AND MAINTENANCE OF OIL AND GAS PIPELINE SYSTEMS IN NIGERIA Code: DPR Guide 0027 – 2021

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Applicable to all Oil & Gas Operators  
GUIDELINES FOR THE DESIGN, CONSTRUCTION, OPERATION AND 
MAINTENANCE OF OIL AND GAS PIPELINE SYSTEMS IN NIGERIA  
Code: DPR Guide 0027 – 2021 
 
Effective Date: 14th October 2021 
 
This is a property of the Department of Petroleum Resources. All rights reserved  
 
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of the exercise.  The Department shall have the liberty of nominating officers to witness 
and endorse the results generated in such model test activity. 
6. OPERATION AND MAINTENANCE OF OIL AND GAS PIPELINES. 
6.1 Renewal of OPLL  
For the renewal of OPLL, a copy of the expiring licence with the relevant attachments 
(Schedule 1 & 2) and a copy of the most recent pipeline integrity report shall be forwarded 
alongside the application for renewal of the licence. Renewal of OPLL shall be granted only 
on the submission and approval of a comprehensive pipeline CEP. 
Note: PTS processes  in line with Section 2.2 shall apply.  
6.2 Renewal of Licence to Operate for Pipelines 
Licence to Operate Pipelines shall be renewed annually. For the renewal of LTO, the 
following shall be forwarded alongside the application: 
a. A copy of the expiring licence.  
b. Evidence of Payment of $10,000:00, made payable to the Department of 
Petroleum Resources as Licence to Operate fee. 
c. The location of each point at which there is a change in any of the following 
parameters: 
i. Outside or nominal diameter of the pipeline. 
ii. Wall thickness of the line pipe material. 
iii. Type and Grade of line pipe. 
iv. Designed maximum operating pressure.  
d. A satisfactory audit exercise and signed-off document. 
6.2.1 Annual Audit 
A pipeline audit shall be carried out annually for the purpose of establishing compliance by 
the operator and renewal of the LTO. The Audit shall be carried out by nominated officials 
of the Department of Petroleum Resources prior renewal of LTO. The objective of the 
Audit are as follows at the minimum : 
a. Review documentations and equipment/systems of the pipeline to ascertain its 
integrity and readiness for continued safe operation.