Oklahoma Code § 52-87.6

Title 52. Oil And Gas: Short title - Extended Horizontal Well Development Act -
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Definitions.
A.  Sections 87.6 through 87.9 of this title shall be known and
may be cited as the "Extended Horizontal Well Development Act".
B.  As used in the Extended Horizontal Well Development Act:
1.  "Adjacent common source of supply" means a common source of
supply which is immediately adjacent to and adjoining the targeted
reservoir or targeted reservoirs in a multiunit horizontal well
being drilled pursuant to Section 87.8 of this title or a well being
drilled in a horizontal well unitization pursuant to Section 87.9 of
this title and which is inadvertently encountered in the drilling of
the lateral of a multiunit horizontal well or a well pursuant to a
horizontal well unitization when such well is drilled out of or
exits, whether on one or multiple occasions, the targeted reservoir
or targeted reservoirs, and which is not the primary target of the
subject well and shall not be included in the relinquished rights
pursuant to subsection (h) of Section 87.1 of this title.  In the
event that an adjacent common source of supply may be inadvertently
encountered in the drilling of the lateral of a multiunit horizontal
well or a well pursuant to a horizontal well unitization when such
well is drilled out of or exits, whether on one or multiple
occasions, the targeted reservoir or targeted reservoirs, then said
inadvertently entered adjacent common source of supply shall be
included as part of the targeted reservoir only for the purpose of
the inadvertent penetrations, and any subsequent completion,
commingling and production of said adjacent common source of supply
with the targeted reservoir or targeted reservoirs, but not for
future development of said adjacent common source of supply;
2.  "Allocation factor" means the percentage of costs,
production or proceeds allocated to a unit affected by a multiunit
horizontal well;
3.  "Application" means a written request filed by an owner of
the right to drill seeking approval to drill, complete and produce a
multiunit horizontal well or to create a horizontal well
unitization;
4.  "Commission" means the Corporation Commission;
5.  "Completion interval" means, for an open hole completion in
a horizontal well, the interval from the point of entry to the
terminus and, for a cased and cemented completion in a horizontal
well, the interval from the first perforations to the last
perforations;
6.  "Horizontal well" means a well drilled, completed, or
recompleted with one or more laterals which, for at least one
lateral, the horizontal component of the completion interval exceeds

the vertical component of the completion interval and the horizontal
component extends a minimum of one hundred fifty (150) feet in the
formation;
7.  "Horizontal well unitization" means a unitization for a
targeted reservoir created pursuant to Section 87.9 of this title;
8.  "Horizontal component" means the calculated horizontal
distance from the point of entry to the terminus;
9.  "Lateral" means the portion of the wellbore of a horizontal
well from the point of entry to the terminus;
10.  "Multiunit horizontal well" means a horizontal well in a
targeted reservoir or targeted reservoirs wherein the completion
interval of the well is located in more than one unit formed for the
same targeted reservoir, with the well being completed in and
producing from such targeted reservoir in two or more of such units;
11.  "Plan of development" means the proposed plan for
developing the targeted reservoir unitized pursuant to Section 87.9
of this title, which plan, based upon the information and knowledge
then available to the applicant, shall include:
a. a map or maps indicating the location of each existing
well in the proposed unit and the anticipated location
of each horizontal well proposed to be drilled in the
proposed unit that is anticipated to be necessary,
based upon the information and knowledge then
available to the applicant, for the full and efficient
development and operation of the proposed unit for the
recovery of oil and gas from the targeted reservoir
within the proposed unit,
b. any applicable proposed allocation factor or factors
for allocating the costs, production and proceeds from
the proposed unit,
c. the anticipated timing and anticipated sequence of
drilling of each horizontal well in the proposed unit,
and
d. any other specific terms, provisions, conditions and
requirements set forth in Section 87.9 of this title
or determined by the Commission to be reasonably
necessary or proper to effectuate or accomplish the
purpose of Section 87.9 of this title;
12.  "Point of entry" means the point at which the borehole of a
horizontal well first intersects the top of the targeted reservoir;
13.  "PRSA" means the Production Revenue Standards Act;
14.  "Targeted reservoir" means one or more common sources of
supply which will be encountered by the horizontal lateral portion
of a horizontal well, and which has been designated by the
Commission as part of an order, rule or emergency rule as
potentially suited for development for the applied for multiunit
horizontal well pursuant to Section 87.8 of this title or a

horizontal well unitization pursuant to Section 87.9 of this title.
Provided, however, that more than one common source of supply may
only be granted by the Commission and included in the targeted
reservoir upon a showing of reasonable cause by the applicant
requesting the multiunit well in the application requesting
authority for the multiunit well prior to the drilling of said
multiunit well that the inclusion of the additional common source(s)
of supply shall prevent waste and protect the correlative rights of
all of the owners of the oil and gas rights;
15.  "Terminus" means the end point of the borehole of a
horizontal well in the targeted reservoir;
16.  "Wellbore royalty interest" means, for each separate
multiunit horizontal well, the sum of resulting products of each
affected unit's royalty share for that unit, as defined by the PRSA,
multiplied by that unit's allocation factor for production and
proceeds;
17.  "Wellbore royalty proceeds" means the proceeds or other
revenue derived from or attributable to any production of oil and
gas from the multiunit horizontal well multiplied by the wellbore
royalty interest;
18.  "Unit" means a drilling and spacing unit for a single
common source of supply created pursuant to Section 87.1 of this
title or a horizontal well unitization created pursuant to Section
87.9 of this title;
19.  "Unit's royalty contribution factor" means the royalty
share for an affected unit, as defined by PRSA, multiplied by that
unit's allocation factor, then divided by the total wellbore royalty
interest; and
20.  "Vertical component" means the calculated vertical distance
from the point of entry to the terminus.
Added by Laws 2011, c. 54, § 2, emerg. eff. April 13, 2011.  Amended
by Laws 2012, c. 264, § 1, emerg. eff. May 16, 2012; Laws 2014, c.
400, § 1, emerg. eff. June 3, 2014; Laws 2017, c. 372, § 3.

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