EX-15 16 exhibit15aiii.htm EXHIBIT 15(A)(III) REPORT OF DEGOLYER AND MCNAUGHTON exhibit15aiii
 
.
- Equinor, Annual Report on Form 20-F 2021
 
1
February 15, 2022
Equinor ASA
Forusbeen 50
N-4035 Stavanger
Norway
 
Ladies and Gentlemen:
Pursuant to your request, this report of third party
 
presents an independent evaluation,
 
as of December 31, 2021, of the estimated
net proved oil, condensate, liquefied petroleum gas
 
(LPG), and sales gas reserves of certain properties
 
(Table
 
1) in which Equinor ASA
(Equinor) has represented it holds an interest.
 
This evaluation was completed on February 15,
 
2022. Equinor has represented that these
properties account for 100 percent,
 
on a net equivalent barrel basis,
 
of Equinor’s net proved reserves as of
 
December 31, 2021, and that
Equinor’s estimates of net proved reserves
 
have been prepared in accordance with the
 
reserves definitions of Rules 4–10(a)
(1)–(32) of Regulation S–X of the United States Securities
 
and Exchange Commission (SEC). It is our
 
opinion that the procedures and
methodologies employed by Equinor for the preparation
 
of its proved reserves estimates as of December
 
31, 2021, comply with the current
requirements of the SEC. We have reviewed information
 
provided to us by Equinor that it represents to
 
be Equinor’s estimates of the net
reserves, as of December 31, 2021,
 
for the same properties as those which we
 
have independently evaluated.
 
This report was prepared in
accordance with guidelines specified in Item 1202
 
(a)(8) of Regulation S–K and is to be
 
used for inclusion in certain SEC filings by Equinor.
Reserves estimated herein are expressed as net
 
reserves as represented by Equinor and as
 
estimated by DeGolyer and
MacNaughton.
 
Gross reserves are defined as the total estimated
 
petroleum remaining to be produced from these properties
 
after December
31, 2021. Net reserves are defined as that portion
 
of the gross reserves attributable to the interests
 
held by Equinor after deducting all
interests held by others.
Estimates of reserves should be regarded
 
only as estimates that may change as further production
 
history and additional
information become available. Not only are such estimates
 
based on that information which is currently available,
 
but such estimates are also
subject to the uncertainties inherent in the application
 
of judgmental factors in interpreting such information.
Information used in the preparation of this report
 
was obtained from Equinor. In the preparation of this report
 
we have relied, without
independent verification, upon information furnished by Equinor
 
with respect to the property interests being
 
evaluated, production from such
properties, current costs of operation and development,
 
current prices for production, agreements relating
 
to current and future operations and
sale of production, and various other information
 
and data that were accepted as represented.
 
A field examination was not considered
necessary for the purposes of this report.
Definition of Reserves
Petroleum reserves estimated by Equinor and by
 
us included in this report are classified as proved.
 
Only proved reserves have been
evaluated for this report. Reserves classifications
 
used by Equinor and by us in this report are
 
in accordance with the reserves definitions
 
of
Rules 4–10(a) (1)–(32) of Regulation S–X of the
 
SEC. Reserves are judged to be economically
 
producible in future years from known
reservoirs under existing economic and operating
 
conditions and assuming continuation of current regulatory
 
practices using known
production methods and equipment. In the analyses of production-decline
 
curves, reserves were estimated only to the
 
limit of economic rates
2
 
Equinor, Annual Report on Form 20-F 2021
 
of production under existing economic and operating
 
conditions using prices and costs consistent with
 
the effective date of this report,
including consideration of changes in existing prices
 
provided only by contractual arrangements
 
but not including escalations based upon
future conditions. The petroleum reserves are classified as
 
follows:
Proved oil and gas reserves
 
– Proved oil and gas reserves are those
 
quantities of oil and gas, which, by analysis of
geoscience and engineering data, can be estimated
 
with reasonable certainty to be economically producible—from
 
a
given date forward, from known reservoirs, and
 
under existing economic conditions, operating
 
methods, and government
regulations—prior to the time at which contracts providing
 
the right to operate expire, unless evidence indicates
 
that
renewal is reasonably certain, regardless of whether
 
deterministic or probabilistic methods are used
 
for the estimation.
The project to extract the hydrocarbons must
 
have commenced or the operator must be
 
reasonably certain that it will
commence the project within a reasonable time.
(i) The area of the reservoir considered
 
as proved includes:
(A) The area identified by drilling and limited
 
by fluid contacts, if any, and (B) Adjacent undrilled portions of the
reservoir that can, with reasonable certainty, be judged to be continuous with
 
it and to contain economically
producible oil or gas on the basis of available
 
geoscience and engineering data.
(ii) In the absence of data on fluid contacts,
 
proved quantities in a reservoir are limited by
 
the lowest known
hydrocarbons (LKH) as seen in a well penetration unless
 
geoscience, engineering, or performance data
 
and
reliable technology establishes a lower contact with
 
reasonable certainty.
(iii) Where direct observation from well penetrations
 
has defined a highest known oil (HKO) elevation
 
and the
potential exists for an associated gas cap, proved
 
oil reserves may be assigned in the structurally
 
higher
portions of the reservoir only if geoscience, engineering,
 
or performance data and reliable technology
 
establish
the higher contact with reasonable certainty.
(iv) Reserves which can be produced economically
 
through application of improved recovery techniques
(including, but not limited to, fluid injection) are
 
included in the proved classification when:
(A) Successful testing by a pilot project in an
 
area of the reservoir with properties no more
 
favorable than in the
reservoir as a whole, the operation of an installed
 
program in the reservoir or an analogous reservoir, or other
evidence using reliable technology establishes the reasonable
 
certainty of the engineering analysis on which
the project or program was based; and (B) The
 
project has been approved for development
 
by all necessary
parties and entities, including governmental entities.
(v) Existing economic conditions include prices and
 
costs at which economic producibility from a reservoir
 
is to
be determined. The price shall be the average price
 
during the 12-month period prior to the ending
 
date of the
period covered by the report, determined as an unweighted
 
arithmetic average of the first-day-of-the-month
price for each month within such period, unless prices
 
are defined by contractual arrangements, excluding
escalations based upon future conditions.
Developed oil and gas reserves
 
– Developed oil and gas reserves are reserves
 
of any category that can be expected
 
to
be recovered:
 
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- Equinor, Annual Report on Form 20-F 2021
 
3
(i) Through existing wells with existing equipment
 
and operating methods or in which the
 
cost of the required
equipment is relatively minor compared to the
 
cost of a new well; and
(ii) Through installed extraction equipment and
 
infrastructure operational at the time of the reserves
 
estimate if
the extraction is by means not involving a
 
well.
Undeveloped oil and gas reserves –
Undeveloped oil and gas reserves are reserves
 
of any category that are expected to
be recovered from new wells on undrilled acreage,
 
or from existing wells where a relatively major
 
expenditure is required
for recompletion.
(i) Reserves on undrilled acreage shall be limited
 
to those directly offsetting development spacing areas
 
that are
reasonably certain of production when drilled, unless
 
evidence using reliable technology exists
 
that establishes
reasonable certainty of economic producibility at greater
 
distances.
(ii) Undrilled locations can be classified as having
 
undeveloped reserves only if a development
 
plan has been
adopted indicating that they are scheduled to be drilled
 
within five years, unless the specific circumstances
justify a longer time.
(iii) Under no circumstances shall estimates for undeveloped
 
reserves be attributable to any acreage for
 
which
an application of fluid injection or other improved
 
recovery technique is contemplated, unless such
 
techniques
have been proved effective by actual projects in
 
the same reservoir or an analogous reservoir, as defined in
[section 210.4–10 (a) Definitions],
 
or by other evidence using reliable technology establishing
 
reasonable
certainty.
Methodology and Procedures
Estimates of reserves were prepared by the use
 
of appropriate geologic, petroleum engineering,
 
and evaluation principles and
techniques that are in accordance with the reserves
 
definitions of Rules 4–10(a) (1)–(32) of Regulation
 
S–X of the SEC and with practices
generally recognized by the petroleum industry as
 
presented in the publication of the Society of
 
Petroleum Engineers entitled “Standards
Pertaining to the Estimating and Auditing of Oil and
 
Gas Reserves Information (revised June 2019)
 
Approved by the SPE Board on 25 June
2019” and in Monograph 3 and Monograph
 
4 published by the Society of Petroleum Evaluation
 
Engineers. The method or combination of
methods used in the analysis of each reservoir was
 
tempered by experience with similar reservoirs, stage
 
of development, quality and
completeness of basic data, and production history.
Based on the current stage of field development,
 
production performance, the development plans provided
 
by Equinor, and
analyses of areas offsetting existing wells with test
 
or production data, reserves were classified as
 
proved. The proved undeveloped reserves
estimates were based on opportunities identified
 
in the plan of development provided by Equinor.
Equinor has represented that its senior
 
management is committed to the development plan
 
provided by Equinor and that Equinor
has the financial capability to execute the development
 
plan, including the drilling and completion of
 
wells and the installation of equipment and
facilities.
4
 
Equinor, Annual Report on Form 20-F 2021
 
When applicable, the volumetric method was used
 
to estimate the original oil in place (OOIP) and
 
original gas in place (OGIP).
Structure maps were prepared to delineate each
 
reservoir, and isopach maps were constructed to estimate reservoir volume.
 
Electrical logs,
radioactivity logs, and other available data were
 
used to prepare these maps as well as
 
to estimate representative values for porosity and
water saturation. When adequate data were available
 
and when circumstances justified, material-balance
 
and other engineering methods
were used to estimate OOIP and OGIP.
 
For those fields where the volumetric method was
 
applied, estimates of ultimate recovery were
 
obtained after applying recovery
factors to OOIP and OGIP. These recovery factors were based on consideration of the type of energy
 
inherent in the reservoirs, analyses of
the petroleum, the structural positions of the reservoirs,
 
and the production histories.
 
When applicable, material-balance and other engineering
methods were used to estimate recovery factors
 
based on an analysis of reservoir pressure and
 
reservoir fluid properties.
For depletion-type reservoirs or those whose performance
 
disclosed a reliable decline in producing-rate
 
trends or other diagnostic
characteristics, reserves were estimated by the application
 
of appropriate decline-curve or other performance
 
relationships. In the analyses of
production decline curves, reserves were estimated
 
only to the limits of economic production as defined
 
under the Definition of Reserves
heading of this report or to the limit of production
 
licenses as appropriate.
For the evaluation of unconventional reservoirs,
 
a performance-based methodology integrating the appropriate
 
geology and
petroleum engineering data was utilized for this report.
 
Performance-based methodology primarily includes
 
(1) production diagnostics, (2)
decline-curve analysis, and (3) model-based analysis
 
(if necessary, based on availability of data). Production diagnostics include
 
data quality
control, identification of flow regimes, and characteristic
 
well performance behavior. These analyses were performed for all well
 
groupings (or
type-curve areas).
Characteristic rate-decline profiles from diagnostic
 
interpretation were translated to modified hyperbolic
 
rate profiles, including one or
multiple b-exponent values followed by an exponential
 
decline. Based on the availability of data,
 
model-based analysis may be integrated to
evaluate long-term decline behavior, the effect of dynamic reservoir and fracture
 
parameters on well performance, and complex
 
situations
sourced by the nature of unconventional reservoirs.
In certain cases, reserves were estimated by incorporating
 
elements of analogy with similar wells or reservoirs
 
for which more
complete data were available.
Data provided by Equinor from wells drilled through October
 
31, 2021, and made available for this evaluation
 
were used to prepare
the reserves estimates herein. These reserves estimates
 
were based on consideration of monthly production
 
data available for certain
properties only through October 2021.
 
Estimated cumulative production, as of December
 
31, 2021, was deducted from the estimated gross
ultimate recovery to estimate gross reserves.
 
This required that production be estimated
 
for up to 2 months.
Oil and condensate reserves estimated herein are
 
those to be recovered by normal field separation. LPG
 
reserves estimated herein
consist primarily of propane and butane fractions and
 
are the result of low-temperature plant processing.
 
Oil, condensate, and LPG reserves
included in this report are expressed in millions of
 
barrels (10
6
bbl). In these estimates, 1 barrel equals 42
 
United States gallons.
Gas quantities estimated herein are expressed
 
as sales gas. Sales gas is defined as
 
the total gas to be produced from the
reservoirs after reduction for shrinkage from field or platform
 
handling, separation, processing (including liquid removal),
 
fuel usage, flaring,
reinjection, pipeline losses, and onshore processing
 
measured at the point of delivery. Gas reserves estimated herein are
 
reported as sales
 
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- Equinor, Annual Report on Form 20-F 2021
 
5
gas. Gas quantities are expressed at a temperature
 
base of 15.6 degrees Celsius (°C) and at
 
a pressure base of 14.696 pounds per
 
square
inch absolute (psia). Gas quantities included in
 
this report are expressed in billions of
 
cubic feet (10
9
ft
3
).
Gas quantities are identified by the type of reservoir
 
from which the gas will be produced. Nonassociated
 
gas is gas at initial
reservoir conditions with no oil present in the reservoir. Associated gas includes
 
both gas-cap gas and solution gas. Gas-cap
 
gas is gas at
initial reservoir conditions and is in communication
 
with an underlying oil zone. Solution gas is gas
 
dissolved in oil at initial reservoir conditions.
The gas quantities estimated herein consist of both
 
associated and nonassociated gas reserves.
At the request of Equinor, sales gas reserves estimated herein were
 
converted to oil equivalent using an energy equivalent
 
factor of
5,612.1 cubic feet of gas per 1 barrel of oil equivalent.
Primary Economic Assumptions
This report has been prepared using initial prices,
 
expenses, and costs provided by Equinor in United
 
States dollars (U.S.$). Future
prices were estimated using guidelines established by
 
the SEC and the Financial Accounting Standards Board
 
(FASB). The following
economic assumptions were used for estimating the reserves
 
reported herein:
Oil, Condensate,
 
and LPG Prices
Equinor has represented that the oil, condensate,
 
and LPG prices were based on a reference
 
price,
 
calculated
as the unweighted arithmetic average of the first-day-of-the-month
 
price for each month within the 12-month
period prior to the end of the reporting period,
 
unless prices are defined by contractual agreements.
 
Equinor
supplied differentials by field to a Brent oil reference
 
price of U.S.$69.22 per barrel and the prices
 
were held
constant thereafter. The volume-weighted average prices
 
attributable to the estimated proved reserves over the
lives of the properties were U.S.$67.61 per barrel
 
of oil, U.S.$65.02 per barrel of condensate, and
 
U.S.$47.17
per barrel of LPG.
Gas Prices
Equinor has also represented that the gas prices
 
were based on a reference price, calculated
 
as the
unweighted arithmetic average of the first-day-of-the-month
 
price for each month within the 12-month period
prior to the end of the reporting period, unless
 
prices are defined by contractual agreements. A significant
quantity of the gas sold by Equinor is subject
 
to contract prices, and the range of such prices
 
is varied. Where
appropriate, Equinor supplied differentials by field to a United
 
Kingdom National Balancing Point Index
reference price of U.S.$14.01 per million Btu and
 
the prices were held constant thereafter. The volume-
weighted average price attributable to the estimated proved
 
reserves over the lives of the properties was
U.S.$11.89 per million Btu of gas.
Operating Expenses,
 
Capital Costs,
 
and Abandonment Costs
Historical and budgeted operating expenses,
 
capital costs, and abandonment costs, provided by
 
Equinor, were
used in estimating future costs required to operate
 
the properties. In certain cases, future expenditures,
 
either
higher or lower than existing expenditures,
 
may have been used because of anticipated
 
changes in operating
6
 
Equinor, Annual Report on Form 20-F 2021
 
conditions,
 
but no general escalation that might result
 
from inflation was applied. Abandonment costs are those
costs associated with the removal of equipment, plugging
 
of wells, and reclamation and restoration associated
with the abandonment.
 
The abandonment costs were not escalated for
 
inflation and are inclusive of costs
incurred for existing wells and facilities as well
 
as those for future development associated with
 
the proved
reserves estimated herein.
Operating expenses, capital costs, and abandonment
 
costs were considered in determining the economic
viability of the undeveloped reserves estimated herein.
In our opinion, the information relating to estimated
 
proved reserves of oil, condensate, LPG,
 
and sales gas contained in this report
has been prepared in accordance with Paragraphs
 
932-235-50-4, 932-235-50-6, 932-235-50-7, and 932-235-50-9
 
of the Accounting
Standards Update 932-235-50,
Extractive Industries – Oil and Gas (Topic 932): Oil and Gas Reserve
 
Estimation and Disclosures
(January 2010) of the FASB and Rules 4–10(a) (1)–(32) of Regulation
 
S–X and Rules 302(b), 1201, 1202(a)
 
(1), (2), (3), (4), (8), and 1203(a)
of Regulation S–K of the SEC; provided, however, that estimates of
 
proved developed and proved undeveloped reserves
 
are not presented at
the beginning of the year.
To the extent the above-enumerated rules, regulations, and statements require determinations
 
of an accounting or legal nature, we,
as engineers, are necessarily unable to express an
 
opinion as to whether the above-described information
 
is in accordance therewith or
sufficient therefor.
 
 
 
 
 
 
 
 
 
 
 
 
 
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- Equinor, Annual Report on Form 20-F 2021
 
7
Summary of Conclusions
Equinor has represented that its estimated net proved
 
reserves attributable to the evaluated properties
 
were based on the definition
of proved reserves of the SEC. Equinor has represented
 
that its estimates of the net proved reserves,
 
as of December 31, 2021, attributable to
these properties, which represent 100 percent of
 
Equinor’s reserves on a net equivalent
 
basis, are summarized as follows, expressed in
millions of barrels (10
6
bbl), billions of cubic feet (10
9
ft
3
), and millions of barrels of oil equivalent
 
(10
6
boe):
Estimated by Equinor
Net Proved Reserves as of December 31, 2021
Oil
(10
6
bbl)
Condensate
(10
6
bbl)
LPG
(10
6
bbl)
Sales
Gas
(10
9
ft
3
)
Oil
Equivalent
(10
6
boe)
Properties Evaluated by
DeGolyer and MacNaughton
Total Proved
2,311.1
43.6
260.7
15,380.7
5,356.0
Note: Sales gas reserves estimated herein were
 
converted to oil equivalent using an energy
 
equivalent factor of
5,612.1 cubic feet of gas per 1 barrel of oil equivalent.
DeGolyer and MacNaughton’s independent estimates of Equinor’s
 
net proved reserves,
 
as of December 31, 2021, attributable to the
evaluated properties were based on the definition
 
of proved reserves of the SEC and are summarized
 
as follows, expressed in millions of
barrels (10
6
bbl), billions of cubic feet (10
9
ft
3
), and millions of barrels of oil equivalent
 
(10
6
boe):
Estimated by DeGolyer and MacNaughton
Net Proved Reserves as of December 31, 2021
Oil
(10
6
bbl)
Condensate
(10
6
bbl)
LPG
(10
6
bbl)
Sales
Gas
(10
9
ft
3
)
Oil
Equivalent
(10
6
boe)
Properties Evaluated by
DeGolyer and MacNaughton
Total Proved
2,353.0
98.2
283.2
15,448.7
5,487.2
Note: Sales gas reserves estimated herein were
 
converted to oil equivalent using an energy equivalent
 
factor of
5,612.1 cubic feet of gas per 1 barrel of oil equivalent.
8
 
Equinor, Annual Report on Form 20-F 2021
 
In comparing the detailed net proved reserves estimates
 
prepared by DeGolyer and MacNaughton
 
and by Equinor, differences have
been found, both positive and negative, resulting
 
in an aggregate difference of 2.4 percent when compared
 
on the basis of net equivalent
barrels. It is DeGolyer and MacNaughton’s opinion that the net
 
proved reserves estimates prepared by Equinor
 
on the properties evaluated
and referred to above, when compared on the basis
 
of net equivalent barrels, in aggregate, do not
 
differ materially from those prepared by
DeGolyer and MacNaughton.
While the oil and gas industry may be subject
 
to regulatory changes from time to time that
 
could affect an industry participant’s
ability to recover its reserves, we are not aware
 
of any such governmental actions which would
 
restrict the recovery of the December 31,
 
2021,
estimated reserves.
 
DeGolyer and MacNaughton is an independent petroleum
 
engineering consulting firm that has been providing
 
petroleum consulting
services throughout the world since 1936. DeGolyer
 
and MacNaughton does not have any financial
 
interest, including stock ownership, in
Equinor. Our fees were not contingent on the results of our evaluation.
 
This letter report has been prepared at the
 
request of Equinor.
DeGolyer and MacNaughton has used all assumptions, data,
 
procedures, and methods that it considers necessary
 
and appropriate to prepare
this report.
Submitted,
DeGOLYER and MacNAUGHTON
Texas Registered Engineering Firm F-716
 
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- Equinor, Annual Report on Form 20-F 2021
 
9
CERTIFICATE of QUALIFICATION
I, Regnald A. Boles, Petroleum Engineer with DeGolyer
 
and MacNaughton, 5001 Spring Valley Road,
 
Suite 800 East, Dallas, Texas,
75244 U.S.A., hereby certify:
1.
 
That I am a Senior Vice President with DeGolyer and MacNaughton,
 
which firm did prepare the report of third party addressed
 
to
Equinor dated February 15, 2022, and that I, as
 
Senior Vice President, was responsible for the preparation
 
of this report of third
party.
2.
 
That I attended Texas A&M
 
University,
 
and that I graduated with a Bachelor of Science
 
degree in Petroleum Engineering in the year
1983; that I am a Registered Professional Engineer
 
in the State of Texas; that I am a member of the Society of Petroleum
Engineers; that I am a member of the European
 
Association of Geoscientists and Engineers; and
 
that I have in excess of 38 years
of experience in oil and gas reservoir studies
 
and evaluations.
 
10
 
Equinor, Annual Report on Form 20-F 2021
 
TABLE 1
Country
Field
Algeria
In Amenas
In Salah
Angola
Acacia
Cravo
Dalia
Girassol
Kizomba A
Kizomba B
Lirio
Marte
Mondo
Orquidea-Violeta
Perpetua-Hortensia
Plutao
Rosa
Saturno
SaxiBatuque
Venus
Zinia
Argentina
Bandurria Sur
Azerbaijan
Azeri-Chirag-Gunashli
Azeri-Chirag-Gunashli-ACE
Brazil
Bacalhau Concession
Bacalhau PSC
Peregrino
Roncador
Canada
Hebron
Hibernia
Hibernia Southern Extension
Republic of Ireland
Corrib
Libya
Murzuq
 
Nigeria
Agbami
 
 
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- Equinor, Annual Report on Form 20-F 2021
 
11
TABLE 1
 
(Continued)
Country
Field
Norway
Aasta Hansteen
Aerfugl
Alve
Asgard
Bauge
Breidablikk
Byrding
Ekofisk
Eldfisk
Embla
Enoch
Fram
 
Fram H-North
Gimle
Gina Krog
Goliat
Grane
Grasel
Gudrun
 
Gullfaks Area
Gungne
Hanz
Heidrun
 
Hyme
Ivar Aasen
Johan Castberg
Johan Sverdrup
Johan Sverdrup Phase 2
Kristin
Kristin South Phase 1
Kvitebjorn
 
Martin Linge
Marulk
Mikkel
Morvin
Njord
Norne
Ormen Lange
Oseberg
Oseberg East
Oseberg South
Sigyn
Sindre
Skarv
Skuld
Sleipner East
Sleipner West
Snadd Outer
Snohvit
 
Snorre
Statfjord
TABLE 1
(Continued)
Country
Field
Norway –
(Continued)
12
 
Equinor, Annual Report on Form 20-F 2021
 
Statfjord East
Statfjord North
Svalin
Sygna
Tor
Tordis
 
Trestakk
Troll
 
Tune
Tyrihans
Urd
Utgard
Valemon
Veslefrikk
Vigdis
Visund
Visund South
Russia
Kharyaga
North Danilovsky
North Komsomolskoye
United Kingdom
Barnacle
Mariner
United States
APB North Non Op
APB Op
APB South Non Op
Big Foot
Caesar-Tonga
Heidelberg
Jack
Julia
St. Malo
Stampede
Tahiti
Titan
Vito