Company: MGY
Filing Date: 2025-02-19
Form Type: 10-K
Source: 0001698990-25-000006
Chunk: 21

Company: Magnolia Oil & Gas Corp
Filing Date: 2025-02-19
Form: 10-K
Item: Item 1
Chunk 21
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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. Oil and natural gas prices applied in estimating proved reserves are determined using an unweighted arithmetic average of the first-day-of-the-month price for each of the 12 months within the reporting period.

Proved reserves are sub-divided into two categories, proved developed and proved undeveloped. Proved developed reserves are volumes that can be expected to be recovered through existing wells with existing equipment and operating methods or where the cost of the required equipment is relatively minor compared to the cost of a new well. Proved undeveloped reserves are volumes 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. Proved undeveloped reserves on undrilled acreage are 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. Undrilled locations can be classified as undeveloped reserves only if a plan has been adopted indicating that they are scheduled to be drilled within five years, unless the specific circumstances justify a longer time. All of Magnolia’s proved undeveloped reserves as of December 31, 2024, that are included in this Annual Report, are planned to be developed within one year.

The technical and economic data used to estimate proved reserves include, but are not limited to, well logs, geologic maps, well-test data, production data, well data, historical price and cost information, and property ownership interests. This technical data, performance analysis, decline curve analysis, volumetric analysis, assessment of analogues, together with standard engineering and geoscience methods, are applied to estimate proved reserves.

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The proved developed reserves per well are estimated by applying performance analysis and decline curve methods. For proved developed wells that lack adequate production history, reserves were estimated using performance-based type curves and offset location analogues. Proved undeveloped reserves are estimated by using a combination of geologic and engineering data for planned drilling locations. Performance data along with log and core data was used to delineate consistent, continuous reservoir and performance characteristics in core areas of development to identify areas of technical certainty that meets