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Guideline for Management of GHG and Fugitive Emissions from Midstream and Downstream Petroleum Operations

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KX? 
NIGERIAN MIDSTREAM AND 
Cc DOWNSTREAM PETROLEUM 
‘ 
; 
fi 
REGULATORY AUTHORITY (NMDPRA) 
Applicable to all Midstream and Downstream 
Petroleum Operations 
GUIDELINES FOR MANAGEMENT OF GREEN HOUSE GASES {GHG} 
AND FUGITIVE EMISSIONS FROM MIDSTREAM AND DOWNSTREAM 
PETROLEUM OPERATIONS IN NIGERIA 
National Greenhouse Gas Inventories, The GHG Protocol Corporate 
Accounting and 
Reporting Standard, 
The 
oil and Gas Methane 
Partnership (OGMP) Framework, and Relevant ISO standards. 
iii. 
All methodologies shall be subject to validation and approval by the 
Authority to ensure methodological consistency, transparency, and 
environmental integrity. 
b. 
Tiered and Level-Based Methodological Approach 
Operators shall apply a tiered approach to GHG emissions quantification, 
as defined by the relevant methodological standara: 
i. 
The IPCC Tier system (Tiers 
1, 2, and 3), where: Tier 
1 represents basic 
estimation using default emission factors, Tier 2 uses country-specific or 
company-specific emission factors and improved activity data, Tier 3 
involves 
advanced 
quantification 
through 
direct 
measurement, 
detailed 
modeling, 
or 
Continuous 
Emissions 
Monitoring 
Systems 
(CEMS). 
ii. 
Where the OGMP applies, Level 
1 
to Level 5 methodologies may be 
used to reflect the maturity of emissions reporting and quantification 
practices. These levels are not interchangeable with IPCC Tiers but 
may be recognized as equivalent where applicable and approved by 
the Authority. 
Cc. Implementation Timeline 
i. 
Minimum Standard (Year 1): Within one (1) year of the effective date 
of these Guidelines, 
all Operators shall implement as applicable, at 
least 
Tier 
1 
methodologies, 
or OGMP Levels 
] 
or 
2 where OGMP 
reporting is applicable. 
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