Description of the Underlying Properties
−Removed: The Underlying Properties consist of producing
−Removed: and non-producing interests in oil and natural gas units, wells and lands in Texas, Louisiana and New Mexico.
−Removed: The Underlying Properties
−Removed: include a portion of the assets in east Texas and north Louisiana acquired by Enduro from Denbury Resources Inc.
−Removed: in December 2010, and
−Removed: all of the assets in the Permian Basin of New Mexico and west Texas acquired by Enduro from Samson Investment Company and ConocoPhillips
−Removed: Company in January 2011 and February 2011, respectively.
−Removed: In August 2018, the Sponsor purchased the Underlying Properties from Enduro and
−Removed: assumed all of Enduro’s obligations under the Trust Agreement and other instruments to which Enduro and the Trustee were parties.
+Added: Underlying Properties consist of producing and non-producing interests in oil and natural gas units, wells and lands in Texas, Louisiana
+Added: and New Mexico.
+Added: The Underlying Properties include a portion of the assets in east Texas and north Louisiana acquired by Enduro from Denbury
+Added: Resources Inc.
+Added: in December 2010, and all of the assets in the Permian Basin of New Mexico and west Texas acquired by Enduro from
+Added: Samson Investment Company and ConocoPhillips Company in January 2011 and February 2011, respectively.
+Added: In August 2018,
+Added: the Sponsor purchased the Underlying Properties from Enduro and assumed all of Enduro’s obligations under the Trust Agreement
+Added: and other instruments to which Enduro and the Trustee were parties.
The Underlying Properties are divided into two geographic regions:
6 unchanged sentences
As of December 31,
−Removed: 2021, the Sponsor held average working interests of approximately 22% and 16% and average net revenue interests of approximately 18% and
−Removed: 12% in the Underlying Properties located in the Permian Basin and East Texas/North Louisiana regions, respectively.
−Removed: The Underlying Properties
−Removed: are also burdened by non-cost bearing interests owned by third parties consisting primarily of overriding royalty and royalty interests.
+Added: 2022, the Sponsor held average working interests of approximately 21% and 18% and average net revenue interests of approximately 17%
+Added: and 12% in the Underlying Properties located in the Permian Basin and East Texas/North Louisiana regions, respectively.
+Added: The Underlying
+Added: Properties are also burdened by non-cost bearing interests owned by third parties consisting primarily of overriding royalty and royalty
Cawley, Gillespie & Associates, Inc.
10 unchanged sentences
as to the proved oil and natural gas reserves as of December 31, 2022 was prepared by Cawley Gillespie.
−Removed: Cawley Gillespie, whose firm
−Removed: registration number is F-693, was founded in 1961 and is a leader in the evaluation of oil and gas properties.
−Removed: The technical person at
−Removed: Cawley Gillespie primarily responsible for overseeing the reserve estimates with respect to the Underlying Properties and the Net Profits
−Removed: Interest attributable to the Trust is W.
+Added: Cawley Gillespie, whose
+Added: firm registration number is F-693, was founded in 1961 and is a leader in the evaluation of oil and gas properties.
+Added: The technical person
+Added: at Cawley Gillespie primarily responsible for overseeing the reserve estimates with respect to the Underlying Properties and the Net
+Added: Profits Interest attributable to the Trust is W.
Todd Brooker.
−Removed: Brooker has been a petroleum consultant for Cawley Gillespie since 1992
−Removed: and is currently the Senior Vice President.
+Added: Brooker has been a petroleum consultant for Cawley Gillespie
+Added: since 1992 and is currently the Senior Vice President.
He is a registered professional engineer in the State of Texas (license no.
−Removed: 83462) and a graduate
−Removed: of the University of Texas with a Bachelor of Science in Petroleum Engineering.
+Added: and a graduate of the University of Texas with a Bachelor of Science in Petroleum Engineering.
Information concerning changes in net proved reserves
5 unchanged sentences
reserve quantities and PV-10 attributable to the Trust and Underlying Properties as of December 31, 2022 and 2021:
−Removed: Trust Net Profits Interest
−Removed: Underlying Properties
+Added: Net Profits Interest
(in thousands)
6 unchanged sentences
Proved Undeveloped
−Removed: (1) Reserves for natural gas liquids are included as a component of oil reserves.
−Removed: (2) Boe represents an approximate energy equivalent basis such that one Bbl of crude oil equals approximately six Mcf of natural gas.
−Removed: However, the value of oil and natural gas value and the value of reserve volumes of oil and natural gas are often substantially different
−Removed: than the amount implied by the Boe ratio.
−Removed: (3) PV-10 is a non-GAAP financial measure and represents the present value of estimated future cash inflows from proved crude oil and
−Removed: natural gas reserves, less future development and production costs, discounted at 10% per annum to reflect timing of future cash inflows
−Removed: using the twelve-month unweighted arithmetic average of the first-day-of-the-month commodity prices, after adjustment for differentials
−Removed: in location and quality, for each of the preceding twelve months.
−Removed: An estimate of PV-10 is provided because it provides useful information
−Removed: to investors as it is widely used by professional analysts and sophisticated investors when evaluating oil and gas companies.
−Removed: considered relevant and useful for evaluating the relative monetary significance of oil and natural gas reserves.
−Removed: PV-10 is not intended
−Removed: to represent the current market value of the estimated reserves of the Underlying Properties.
+Added: for natural gas liquids are included as a component of oil reserves.
+Added: represents an approximate energy equivalent basis such that one Bbl of crude oil equals approximately
+Added: six Mcf of natural gas.
+Added: However, the value of oil and natural gas value and the value of
+Added: reserve volumes of oil and natural gas are often substantially different than the amount
+Added: implied by the Boe ratio.
+Added: is a non-GAAP financial measure and represents the present value of estimated future cash
+Added: inflows from proved crude oil and natural gas reserves, less future development and production
+Added: costs, discounted at 10% per annum to reflect timing of future cash inflows using the twelve-month
+Added: unweighted arithmetic average of the first-day-of-the-month commodity prices, after adjustment
+Added: for differentials in location and quality, for each of the preceding twelve months.
+Added: of PV-10 is provided because it provides useful information to investors as it is widely
+Added: used by professional analysts and sophisticated investors when evaluating oil and gas companies.
+Added: PV-10 is considered relevant and useful for evaluating the relative monetary significance
+Added: of oil and natural gas reserves.
+Added: PV-10 is not intended to represent the current market value
+Added: of the estimated reserves of the Underlying Properties.
PV-10 differs from standardized measure
−Removed: of discounted future net cash flows because it does not include the effect of future income taxes.
−Removed: Please refer to the notes to the financial
−Removed: statements of the Trust included in this Form 10-K.
+Added: of discounted future net cash flows because it does not include the effect of future income
+Added: Please refer to the notes to the financial statements of the Trust included in this
Reserve quantities and revenues for the Net Profits
8 unchanged sentences
allocated to the Net Profits Interest.
−Removed: Estimates of proved reserves were prepared in accordance
−Removed: with guidelines prescribed by the SEC and the Financial Accounting Standards Board, which require that reserve estimates be prepared under
−Removed: existing economic and operating conditions based upon an average of the NYMEX first-day-of-the-month commodity price during the 12-month
−Removed: period ending on the balance sheet date with no provision for price and cost escalations except by contractual arrangements.
−Removed: in estimating reserves were as follows:
+Added: Estimates of proved reserves were prepared in
+Added: accordance with guidelines prescribed by the SEC and the Financial Accounting Standards Board, which require that reserve estimates be
+Added: prepared under existing economic and operating conditions based upon an average of the NYMEX first-day-of-the-month commodity price during
+Added: the 12-month period ending on the balance sheet date with no provision for price and cost escalations except by contractual arrangements.
+Added: Prices used in estimating reserves were as follows:
Oil (per Bbl)
1 unchanged sentence
Changes in Proved Undeveloped Reserves
−Removed: During the year ended December 31, 2021, proved
−Removed: undeveloped reserves of the Underlying Properties increased 2.2 MMBoe due to the increase in the amount of booked, non-operated shale
−Removed: wells in the Permian Basin, partially offset by modest decrease in the estimated reserves for the booked, non-operated wells in Haynesville
−Removed: shale of Louisiana.
−Removed: Compared to the year ended December 31, 2020, an increase in the amount of proved undeveloped gross wells were recognized
−Removed: in the reserves of the Underlying Properties when compared to the year ended December 31, 2021.
−Removed: The increase in gross wells reflects an
−Removed: increase in timing of the development of undeveloped reserves potential in the Underlying Properties due to an increase in commodity prices
−Removed: and planned capital expenditures by the operators of the Underlying Properties.
−Removed: The slight reduction in natural gas reserves booked does
−Removed: not reflect a decrease in the underlying reserves potential, as these reserves are still part of the Underlying Properties.
−Removed: reduction was estimated based on an updated market view of third-party operators’
−Removed: completion activity within the Haynesville given
−Removed: the current third-party operator preference for oil-weighted capital expenditures over natural gas-weighted expenditures.
−Removed: The following
−Removed: is a summary of the changes in quantities of proved undeveloped reserves for the Underlying Properties during the year ended December
+Added: the year ended December 31, 2022, proved undeveloped reserves of the Underlying Properties decreased 0.9 MMBoe primarily due to
+Added: the decrease in the estimated reserves for the booked, non-operated wells in Haynesville shale of Louisiana, partially offset
+Added: by the increase in the amount of booked, non-operated Wolfcamp shale wells in the Permian Basin.
+Added: The following is a summary of the changes
+Added: in quantities of proved undeveloped reserves for the Underlying Properties during the year ended December 31, 2022.
Underlying Properties
4 unchanged sentences
December 31, 2022
−Removed: for natural gas liquids are included as a component of oil reserves.
+Added: (1) Reserves for natural gas liquids
+Added: are included as a component of oil reserves.
Producing Acreage and Well Counts
19 unchanged sentences
East Texas/North Louisiana
−Removed: (1) The Sponsor’s total producing wells include
−Removed: 3,395 non-operated wells.
+Added: (1) The Sponsor’s total producing
+Added: wells include 3,312 non-operated wells.
The following is a summary of the number of development
8 unchanged sentences
Exploratory Wells:
−Removed: (1) Production
−Removed: of natural gas liquids is immaterial and included as a component of natural gas production.
+Added: (1) Production of natural gas liquids
+Added: is immaterial and included as a component of natural gas production.
Major Producing Areas
10 unchanged sentences
are located primarily in the Permian Basin (measured by Boe reserves at December 31, 2022).
−Removed: The largest field in the Permian Basin region
−Removed: is the Eunice Monument field, which individually accounts for 15 percent of the Underlying Properties reserves as of December 31, 2021.
+Added: The largest field in the Permian Basin
+Added: region is the Eunice Monument field, which individually accounts for 16 percent of the Underlying Properties reserves as of December 31,
This unit produces from the Brushy Canyon and Wolfcamp formations at depths up to 8,500 feet.
−Removed: Proved reserves attributable to the Underlying
−Removed: Properties in the Eunice Monument field were 1.8 MMBoe as of December 31, 2021.
−Removed: This field is operated by Apache Corporation
−Removed: and Empire New Mexico.
+Added: Proved reserves attributable to the
+Added: Underlying Properties in the Eunice Monument field were 1.9 MMBoe as of December 31, 2022.
+Added: This field is operated by Apache
+Added: Corporation and Empire New Mexico.
East Texas/North Louisiana Region
1 unchanged sentence
10,424 gross (2,840 net) acres in the East Texas/North Louisiana region across three fields:
−Removed: the Elm Grove field, operated primarily by
−Removed: Aethon Energy Operating, LLC and Comstock Oil & Gas, LLC;
−Removed: and the Kingston field, operated by EXCO Resources and Indigo Resources,
−Removed: All proved reserves attributable to the Underlying Properties in the East Texas/North Louisiana region are located in the Haynesville,
−Removed: Cotton Valley, and Hosston reservoirs of the Elm Grove and Kingston fields.
−Removed: Proved reserves attributable to the Underlying Properties
−Removed: in the Elm Grove and Kingston fields were 1.3 MMBoe and 0.3 MMBoe, respectively, as of December 31, 2021.
+Added: the Elm Grove field, operated primarily
+Added: by Aethon Energy Operating, LLC and Comstock Oil & Gas, LLC;
+Added: and the Kingston field, operated by EXCO Resources and Diversified
+Added: Production, LLC.
+Added: All proved reserves attributable to the Underlying Properties in the East Texas/North Louisiana region are located in
+Added: the Haynesville, Cotton Valley, and Hosston reservoirs of the Elm Grove and Kingston fields.
+Added: Proved reserves attributable to the Underlying
+Added: Properties in the Elm Grove and Kingston fields were 0.5 MMBoe and 0.3 MMBoe, respectively, as of December 31, 2022.
Production and Reserves
−Removed: The following table shows the net production,
−Removed: average sales price, average lease operating expense, and proved reserves as of year-end for the Underlying Properties located in the
−Removed: Permian Basin of west Texas and New Mexico and in the East Texas/North Louisiana region, which relates to the amounts included in the
−Removed: net profits calculation for the distributions paid during the years ended December 31, 2021, 2020 and 2019.
+Added: following table shows the net production, average sales price, average lease operating expense, and proved reserves as of year-end for
+Added: the Underlying Properties located in the Permian Basin of west Texas and New Mexico and in the East Texas/North Louisiana region,
+Added: which relates to the amounts included in the net profits calculation for the distributions paid during the years ended December 31,
+Added: 2022, 2021 and 2020.
Year Ended December 31,
22 unchanged sentences
Proved Reserves (MBoe)
−Removed: (1) Production
−Removed: of natural gas liquids is immaterial and included as a component of natural gas production.
+Added: (1) Production of natural gas liquids
+Added: is immaterial and included as a component of natural gas production.
Abandonment and Sale of Underlying Properties
4 unchanged sentences
Interest relating to the abandoned property will be extinguished.
−Removed: The Sponsor generally may sell all or a portion
−Removed: of its interests in the Underlying Properties, subject to and burdened by the Net Profits Interest, without the consent of the Trust unitholders.
−Removed: Following the sale of all or any portion of the Underlying Properties, the purchaser will be bound by the obligations of the Sponsor under
−Removed: the Trust Agreement and the Conveyance with respect to the portion sold.
−Removed: In addition, the Sponsor may, without the consent of the Trust
−Removed: unitholders, require the Trustee to release the Net Profits Interest associated with any lease that accounts for less than or equal to
−Removed: 0.25% of the total production from the Underlying Properties in the prior 12 months and provided that the Net Profits Interest covered
−Removed: by such releases cannot exceed, during any 12-month period, an aggregate fair market value to the Trust of $500,000.
−Removed: These releases will
−Removed: be made only in connection with a sale by the Sponsor to a non-affiliate of the relevant Underlying Properties and are conditioned upon
−Removed: the Trust receiving an amount equal to the fair value to the Trust of such Net Profits Interest.
−Removed: In September 2021, the Sponsor entered
−Removed: into a lease arrangement with respect to a portion of the mineral rights relating to certain of the Underlying Properties located in Borden
−Removed: County, Texas, for total estimated proceeds of $82,500 (approximately $63,000 net to the Trust’s 80% Net Profits Interest).
+Added: Sponsor generally may sell all or a portion of its interests in the Underlying Properties, subject to and burdened by the Net Profits
+Added: Interest, without the consent of the Trust unitholders.
+Added: Following the sale of all or any portion of the Underlying Properties, the purchaser
+Added: will be bound by the obligations of the Sponsor under the Trust Agreement and the Conveyance with respect to the portion sold.
+Added: the Sponsor may, without the consent of the Trust unitholders, require the Trustee to release the Net Profits Interest associated with
+Added: any lease that accounts for less than or equal to 0.25% of the total production from the Underlying Properties in the prior 12 months
+Added: and provided that the Net Profits Interest covered by such releases cannot exceed, during any 12-month period, an aggregate fair market
+Added: value to the Trust of $500,000.
+Added: These releases will be made only in connection with a sale by the Sponsor to a non-affiliate of the relevant
+Added: Underlying Properties and are conditioned upon the Trust receiving an amount equal to the fair value to the Trust of such Net Profits
+Added: In September 2021, the Sponsor entered into a lease arrangement with respect to a portion of the mineral rights
+Added: relating to certain of the Underlying Properties located in Borden County, Texas, for total estimated proceeds of $82,500 (approximately
+Added: $63,000 net to the Trust’s 80% Net Profits Interest).
Title to Properties
2 unchanged sentences
To the extent that these burdens and obligations
−Removed: affect the Sponsor’s rights to production or the value of production from the Underlying Properties, they have been taken into account
−Removed: in calculating the Trust’s interests and in estimating the size and the value of the reserves attributable to the Underlying Properties.
+Added: affect the Sponsor’s rights to production or the value of production from the Underlying Properties, they have been taken into
+Added: account in calculating the Trust’s interests and in estimating the size and the value of the reserves attributable to the Underlying
The Sponsor’s interests in the oil and natural
gas properties comprising the Underlying Properties are typically subject to one or more of the following:
−Removed: royalties and other burdens, express and implied, under oil and natural gas leases and other arrangements;
−Removed: overriding royalties, production payments and similar interests and other burdens created by the Sponsor’s predecessors in title;
−Removed: a variety of contractual obligations arising under operating agreements, farm-out agreements, production sales contracts and other
−Removed: agreements that may affect the Underlying Properties or their title;
−Removed: liens that arise in the normal course of operations, such as those for unpaid taxes, statutory liens securing unpaid suppliers and
−Removed: contractors and contractual liens under operating agreements that are not yet delinquent or, if delinquent, are being contested in good
−Removed: faith by appropriate proceedings;
−Removed: pooling, unitization and communitization agreements, declarations and orders;
−Removed: easements, restrictions, rights-of-way and other matters that commonly affect property;
−Removed: conventional rights of reassignment that obligate the Sponsor to reassign all or part of a property to a third party if the Sponsor
−Removed: intends to release or abandon such property;
−Removed: preferential rights to purchase or similar agreements and required third party consents to assignments or similar agreements;
−Removed: obligations or duties affecting the Underlying Properties to any municipality or public authority with respect to any franchise, grant,
−Removed: license or permit, and all applicable laws, rules, regulations and orders of any governmental authority;
−Removed: rights reserved to or vested in the appropriate governmental agency or authority to control or regulate the Underlying Properties
−Removed: and also the interests held therein, including the Sponsor’s interests and the Net Profits Interest.
−Removed: The Sponsor has informed the Trustee that the Sponsor
−Removed: believes the burdens and obligations affecting the properties comprising the Underlying Properties are conventional in the industry for
−Removed: similar properties.
−Removed: The Sponsor has also informed the Trustee that the Sponsor believes the existing burdens and obligations do not, in
−Removed: the aggregate, materially interfere with the use of the Underlying Properties and will not materially adversely affect the Net Profits
+Added: and other burdens, express and implied, under oil and natural gas leases and other arrangements;
+Added: royalties, production payments and similar interests and other burdens created by the Sponsor’s
+Added: predecessors in title;
+Added: variety of contractual obligations arising under operating agreements, farm-out agreements,
+Added: production sales contracts and other agreements that may affect the Underlying Properties
+Added: or their title;
+Added: that arise in the normal course of operations, such as those for unpaid taxes, statutory
+Added: liens securing unpaid suppliers and contractors and contractual liens under operating agreements
+Added: that are not yet delinquent or, if delinquent, are being contested in good faith by appropriate
+Added: unitization and communitization agreements, declarations and orders;
+Added: restrictions, rights-of-way and other matters that commonly affect property;
+Added: rights of reassignment that obligate the Sponsor to reassign all or part of a property to
+Added: a third party if the Sponsor intends to release or abandon such property;
+Added: rights to purchase or similar agreements and required third party consents to assignments
+Added: or similar agreements;
+Added: or duties affecting the Underlying Properties to any municipality or public authority with
+Added: respect to any franchise, grant, license or permit, and all applicable laws, rules, regulations
+Added: and orders of any governmental authority;
+Added: reserved to or vested in the appropriate governmental agency or authority to control or regulate
+Added: the Underlying Properties and also the interests held therein, including the Sponsor’s
+Added: interests and the Net Profits Interest.
+Added: The Sponsor has informed the Trustee that the
+Added: Sponsor believes the burdens and obligations affecting the properties comprising the Underlying Properties are conventional in the industry
+Added: for similar properties.
+Added: The Sponsor has also informed the Trustee that the Sponsor believes the existing burdens and obligations do not,
+Added: in the aggregate, materially interfere with the use of the Underlying Properties and will not materially adversely affect the Net Profits
Interest or its value.
To give third parties notice of the Net Profits
−Removed: Interest, Enduro recorded the Conveyance in Texas, Louisiana and New Mexico in the real property records in each Texas, Louisiana or New
−Removed: Mexico county in which the Underlying Properties are located, or in such other public records of those states as required under applicable
+Added: Interest, Enduro recorded the Conveyance in Texas, Louisiana and New Mexico in the real property records in each Texas, Louisiana or
+Added: New Mexico county in which the Underlying Properties are located, or in such other public records of those states as required under applicable
law to place third parties on notice of the Conveyance.
−Removed: In a bankruptcy of the Sponsor, to the extent Louisiana
−Removed: or New Mexico law were held to be applicable, the Net Profits Interest might be considered an asset of the bankruptcy estate and used
−Removed: to satisfy obligations to creditors of the Sponsor, in which case the Trust would be an unsecured creditor of the Sponsor at risk of losing
−Removed: the entire value of the Net Profits Interest to senior creditors.
−Removed: See “Risk Factors—In the event of the bankruptcy of the
−Removed: Sponsor, if a court were to hold that the Net Profits Interest was part of the bankruptcy estate, the Trust may be treated as an unsecured
−Removed: creditor with respect to the Net Profits Interest attributable to properties in Louisiana and New Mexico”
−Removed: in Item 1A of this Form
+Added: In a bankruptcy of the Sponsor, to the extent
+Added: Louisiana or New Mexico law were held to be applicable, the Net Profits Interest might be considered an asset of the bankruptcy estate
+Added: and used to satisfy obligations to creditors of the Sponsor, in which case the Trust would be an unsecured creditor of the Sponsor at
+Added: risk of losing the entire value of the Net Profits Interest to senior creditors.
+Added: See “Risk Factors—Financial Risks—In
+Added: the event of the bankruptcy of the Sponsor, if a court were to hold that the Net Profits Interest was part of the bankruptcy estate,
+Added: the Trust may be treated as an unsecured creditor with respect to the Net Profits Interest attributable to properties in Louisiana and
+Added: New Mexico”
+Added: in Item 1A of this Form 10-K.
The Sponsor believes that its title to the Underlying
9 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.