Can the Texas Railroad Commission use the Oil Field Cleanup Fund to clean up a commercial waste disposal site?

TX AG Opinion GA-0294: How far does the Railroad Commission's cleanup fund authority reach?

Plain-English summary

A state representative asked about the scope of the Texas Railroad Commission's authority to spend money from the Oil Field Cleanup Fund on three specific activities: plugging abandoned oil and gas wells, remediating well-site or lease-site surface locations, and cleaning up "commercial disposal sites" that aren't tied to any particular well or lease.

The opinion worked through each use in turn. On plugging wells, the Natural Resources Code expressly authorizes the fund to be used to plug abandoned wells, so the Commission has that authority as long as it follows chapter 89's plugging procedures, which generally require a hearing to determine whether an abandoned well was properly plugged before the Commission orders the operator to fix it or steps in itself. On remediating well and lease sites, the statute is equally direct: the fund may be used to control or clean up oil and gas wastes causing or likely to cause water pollution, following the procedures in section 91.113. The harder question was commercial disposal sites, since the statute doesn't use that term at all. The opinion reasoned that the fund's statutory focus is on the pollutant, oil and gas waste or related substances from oil and gas activities within the Commission's jurisdiction, and the activity that caused it, not on where the pollutant happens to sit. Because a commercial disposal site can be contaminated with the same kinds of oil and gas wastes the statute already covers, the opinion concluded the Commission may use the fund to remediate such a site too, but only to the extent the contamination traces back to oil and gas production, exploratory drilling, or well operation, abandonment, and plugging within the Commission's jurisdiction, not any and all contamination found there.

Currency note

This opinion was issued in 2005. Subsequent statutory amendments, court decisions, or later AG opinions may have changed the analysis. Treat this page as historical context, not current legal advice. Verify current law before relying on any specific rule, deadline, or remedy mentioned here.

Who this opinion affected (as of 2005)

The Texas Railroad Commission: The opinion confirmed the Commission's authority to spend Oil Field Cleanup Fund money on all three activities it asked about, including remediating commercial disposal sites, so long as the contamination is tied to oil and gas waste from operations within the Commission's jurisdiction.

Operators of commercial oil field waste disposal facilities: The opinion meant that a commercial disposal site contaminated with oil and gas waste could become subject to Commission-funded remediation under the same statutory framework that already applied to well and lease sites, not just facilities with a direct well connection.

Legislators and the public tracking the fund's use: The opinion clarified the legal basis for how broadly the Commission could apply cleanup fund dollars, relevant to oversight of the fund's annual reporting and performance goals under sections 91.111 and 91.112.

Common questions

Can the Texas Railroad Commission use the Oil Field Cleanup Fund to plug an abandoned well?
Yes, according to this opinion. Section 91.112(a)(3) expressly authorizes using the fund to plug abandoned wells, provided the Commission follows chapter 89's plugging procedures, including a hearing to determine whether the well was properly plugged.

Can the fund be used to clean up a well or lease site that's polluting groundwater?
Yes. Section 91.112(a)(2) authorizes using the fund to control or clean up oil and gas wastes causing or likely to cause pollution of surface or subsurface water, following the procedures set out in section 91.113.

Can the Railroad Commission use the fund on a commercial disposal site that isn't tied to a specific well?
Yes, according to this opinion, but only to the extent the site is contaminated with oil and gas waste or related materials from oil and gas production, exploratory drilling, or well operation, abandonment, or plugging, activities within the Commission's jurisdiction. The fund's focus is on the type of pollutant and its source activity, not on the location where it is found.

Does this mean the Railroad Commission can clean up any contaminated site using this fund?
No. The opinion limited the fund's use to pollutants connected to activities the Commission actually regulates under Natural Resources Code section 91.101. Contamination unrelated to oil and gas production, drilling, or well operations falls outside the fund's authorized use.

Background and statutory framework

The Railroad Commission has jurisdiction over all oil and gas wells in Texas. Natural Resources Code chapter 91, subchapter D, addressing pollution prevention in oil and gas production, authorizes the Commission to adopt and enforce rules preventing pollution of surface or subsurface water, and establishes the Oil Field Cleanup Fund. Section 91.112(a) directs that the fund be used to conduct site investigations and environmental assessments, control or clean up oil and gas wastes or other regulated substances causing or likely to cause water pollution (consistent with section 91.113), and plug abandoned wells while administering related permits, orders, and rules. Section 91.113 lets the Commission use the fund for investigation, assessment, or cleanup when the responsible person has failed to act after notice and a hearing opportunity, is unknown or cannot be found, has no assets to cover the cleanup, or when the waste is actively causing water pollution.

For well plugging specifically, chapter 89 requires the Commission to determine, after a hearing, whether an abandoned or nonoperating well causing or likely to cause pollution, or leaking gas or oil, was properly plugged. If not properly plugged, the Commission orders the responsible operator or nonoperator to plug it; the Commission itself may plug or replug a well if it was properly plugged under the rules in effect when it was abandoned, or if neither the operator nor nonoperator can be found or has assets to do the work. Where a well is actively leaking and posing a serious pollution or injury threat, the Commission may act, including plugging the well, without prior notice and hearing. After plugging a well, the Commission may recover its costs by ordering the operator to reimburse it or by asking the attorney general to sue for recovery.

On the harder question of commercial disposal sites, a term undefined in the Natural Resources Code or the Texas Administrative Code, the opinion looked to the Commission's own regulatory definition of "commercial facility," a facility whose owner or operator is compensated for storing, reclaiming, treating, or disposing of oil field fluids or oil and gas wastes trucked or hauled in, and assumed that definition covers what the request called commercial disposal sites. The opinion then traced section 91.112(a)(2)'s cross-reference to section 91.101, which gives the Commission jurisdiction over the discharge, storage, handling, transportation, reclamation, or disposal of "oil and gas waste" (defined in section 91.1011 as waste arising from drilling or producing oil or gas, including salt water, brine, sludge, and drilling mud) and other substances associated with activities the Commission regulates: exploratory drilling, oil and gas production, and well operation, abandonment, and plugging. Because the fund statute's language keys on the pollutant and its source activity rather than its physical location, the opinion concluded the fund could reach a commercial disposal site's contamination too, as long as that contamination traces to oil and gas waste or materials from those specifically regulated activities, noting that Railroad Commission jurisdiction in oil and gas matters does not attach to land absent oil and gas activity there in the first place. The opinion's reading was reinforced by the fund statute's own reporting requirements, which already track the number of surface locations remediated and sites remediated using the fund, and by the Commission's own practice of using the fund for hundreds of cleanup activities in 2002 and 2003, a longstanding agency construction the opinion treated as entitled to serious, though not controlling, weight.

Citations

Statutes:

• Tex. Nat. Res. Code Ann. § 81.051(a)(2) (Vernon 2001)
• Tex. Nat. Res. Code Ann. § 91.101(a) (Vernon 2001)
• Tex. Nat. Res. Code Ann. § 91.101(a)(4) (Vernon 2001)
• Tex. Nat. Res. Code Ann. § 91.101(a)(1)-(3)
• Tex. Nat. Res. Code Ann. § 91.1011(a)
• Tex. Nat. Res. Code Ann. § 91.1011(b)
• Tex. Nat. Res. Code Ann. § 91.111 (Vernon Supp. 2004-05)
• Tex. Nat. Res. Code Ann. § 91.111(e)(1)-(3) (Vernon Supp. 2004-05)
• Tex. Nat. Res. Code Ann. § 91.112(a) (Vernon Supp. 2004-05)
• Tex. Nat. Res. Code Ann. § 91.112(a)(2) (Vernon Supp. 2004-05)
• Tex. Nat. Res. Code Ann. § 91.112(a)(3) (Vernon Supp. 2004-05)
• Tex. Nat. Res. Code Ann. § 91.112(b)
• Tex. Nat. Res. Code Ann. § 91.112(b)(5)
• Tex. Nat. Res. Code Ann. § 91.113 (Vernon 2001)
• Tex. Nat. Res. Code Ann. § 91.113(a) (Vernon 2001)
• Tex. Nat. Res. Code Ann. § 91.113(b) (Vernon 2001)
• Tex. Nat. Res. Code Ann. § 91.1135(e)(1)(E)
• Tex. Nat. Res. Code Ann. § 89.041 (Vernon 2001)
• Tex. Nat. Res. Code Ann. § 89.042(a)-(b)
• Tex. Nat. Res. Code Ann. § 89.043(a) (Vernon Supp. 2004-05)
• Tex. Nat. Res. Code Ann. § 89.043(b) (Vernon Supp. 2004-05)
• Tex. Nat. Res. Code Ann. § 89.043(c)
• Tex. Gov't Code Ann. § 311.011 (Vernon 1998)
• 16 Tex. Admin. Code § 3.30(b)(2)(B) (2004)
• 16 Tex. Admin. Code § 3.9(4) (2004)
• 16 Tex. Admin. Code § 3.78(a)(3)-(4)

Cases:

• Monsanto Co. v. Cornerstones Mun. Util. Dist., 865 S.W.2d 937, 939 (Tex. 1993)
• Dallas Morning News Co. v. Bd. of Trs. of Dallas Indep. Sch. Dist., 861 S.W.2d 532, 535 (Tex. App.-Dallas 1993, writ denied)
• Struss v. Stoddard, 258 S.W.2d 413, 417 (Tex. Civ. App.-Fort Worth 1953, writ ref'd n.r.e.)
• Quick v. City of Austin, 7 S.W.3d 109, 123 (Tex. 1999)
• R.R. Comm'n of Tex. v. Delhi-Taylor Oil Corp., 302 S.W.2d 273, 276 (Tex. Civ. App.-Austin 1957, writ ref'd n.r.e.)

Other authorities:

• Railroad Commission of Texas, Oil Field Cleanup Program, Annual Report - Fiscal Year 2002, Oil and Gas Division
• Railroad Commission of Texas, Oil Field Cleanup Program, Annual Report - Fiscal Year 2003, Oil and Gas Division
• 29 Tex. Reg. 6006 (2004), adopted 29 Tex. Reg. 8271 (2004)

Source

• Landing page: https://www.texasattorneygeneral.gov/opinions/greg-abbott/ga-0294
• Original PDF: https://www.texasattorneygeneral.gov/sites/default/files/opinion-files/opinion/2005/ga0294.pdf

Original opinion text

Best-effort transcription from a scanned PDF. Minor errors may remain, the linked PDF is authoritative.

ATTORNEY GENERAL OF TEXAS

GREG ABBOTT

January 19, 2005

The Honorable G. E. "Buddy" West
Chair, Committee on Energy Resources
Texas House of Representatives
Post Office Box 2910
Austin, Texas 78768-2910

Opinion No. GA-0294

Re: Authority of the Railroad Commission to use monies from the Oil Field Cleanup Fund to plug oil and gas wells and perform other activities (RQ-0253-GA)

Dear Representative West:

You inquire about the authority of the Texas Railroad Commission ("Commission") to make certain expenditures from the Oil Field Cleanup Fund.[1] By way of background, you state only that questions have arisen "as to the Railroad Commission's authority to use funds from the Oil Field Cleanup Fund to plug oil and gas wells, to remediate surface sites associated with oil and gas operations, and to provide for managerial overhead." See Request Letter, supra note 1, at 1. Specifically, you pose three questions:

1. Under what terms and conditions does the Railroad Commission have the authority to use funds from the Oil Field Cleanup Fund to plug an oil or gas well?

2. Under what terms and conditions does the Railroad Commission have the authority to use funds from the Oil Field Cleanup Fund to clean up or remediate a well-site or lease-site surface location associated with oil or gas operations?

3. Under what terms and conditions does the Railroad Commission have the authority to use funds from the Oil Field Cleanup Fund to clean-up or remediate what has been commonly referred to as a "commercial disposal site," not associated with a particular well or lease site?

See id.

I. Chapter 91, Natural Resources Code

We begin by briefly reviewing the relevant provisions of the Natural Resources Code. The Commission has jurisdiction over all oil and gas wells in Texas. See TEX. NAT. RES. CODE ANN. § 81.051(a)(2) (Vernon 2001). Chapter 91, subchapter D, pertaining to the prevention of pollution associated with oil and gas production, authorizes the Commission to adopt and enforce rules and orders to "prevent pollution of surface water or subsurface water in the state." Id. § 91.101(a) (text effective until delegation of Resource Conservation and Recovery Act ("RCRA") authority to the Commission).[2] Subchapter D also establishes the Oil Field Cleanup Fund. See id. § 91.111 (Vernon Supp. 2004-05). The Oil Field Cleanup Fund ("fund") is to be used by the Commission (and its employees or agents) to:

(1) conduct[] a site investigation or environmental assessment to determine:

(A) the nature and extent of contamination caused by oil and gas wastes or other substances or materials regulated by the commission under Section 91.101; and

(B) the measures that should be taken to control or clean up the wastes, substances, or materials described in Paragraph (A);

(2) control[] or clean[] up oil and gas wastes or other substances or materials regulated by the commission under Section 91.101 that are causing or are likely to cause the pollution of surface or subsurface water, consistent with Section 91.113;[3]

(3) plug[] abandoned wells and administer[] or enforc[e] permits, orders, and rules relating to the commission's authority to prevent pollution under this chapter, Chapter 89,[4] or any other law administered or enforced by the commission under Title 3;[5]

. . .

(6) prepar[e] the report required under subsection (b).

Id. § 91.112(a) (footnotes added). Where "oil and gas wastes or other substances or materials regulated" by the Commission cause or are likely to cause pollution of surface or subsurface water, section 91.113 expressly authorizes the Commission to

use money in the oil-field cleanup fund to conduct a site investigation or environmental assessment or control or clean up the oil and gas wastes or other substances or materials if:

(1) the responsible person[6] has failed or refused to control or clean up the oil and gas wastes or other substances or materials after notice and opportunity for hearing;

(2) the responsible person is unknown, cannot be found, or has no assets with which to control or clean up the oil and gas wastes or other substances or materials; or

(3) the oil and gas wastes or other substances or materials are causing the pollution of surface or subsurface water.

Id. § 91.113(a) (Vernon 2001) (footnote added).

The Commission is directed to establish specific performance goals for the fund, including the number of site investigations and environmental assessments to be conducted, the number of abandoned wells to be plugged, and the number of surface locations to be remediated. See id. § 91.111(e)(1)-(3) (Vernon Supp. 2004-05). The Commission is further directed to report to the legislature on "the extent to which [the fund] has enabled the commission to better protect the environment and enhance the income of the [fund]." Id. § 91.112(b). The report is to include information on, among other things, the number of wells abandoned, the number of wells plugged, and the number of surface locations remediated. See id.

II. Use of the Oil Field Cleanup Fund

A. Plugging of Oil and Gas Wells

You first inquire about the terms and conditions under which the Commission has authority to use the fund to plug an oil or gas well. See Request Letter, supra note 1, at 1. The answer to this inquiry is governed by the plain language of the statute. Where language in a statute is unambiguous, the intent of the legislature is found in the "plain and common meaning of the words and terms used." Monsanto Co. v. Cornerstones Mun. Util. Dist., 865 S.W.2d 937, 939 (Tex. 1993). Words in statutes are given their ordinary meaning unless the statute defines them or they are connected with and used with reference to a particular trade or subject matter or are a term of art. See TEX. GOV'T CODE ANN. § 311.011 (Vernon 1998); see also Dallas Morning News Co. v. Bd. of Trs. of Dallas Indep. Sch. Dist., 861 S.W.2d 532, 535 (Tex. App.-Dallas 1993, writ denied). Here, section 91.112(a)(3) expressly and unambiguously states that the fund is to be used by the Commission to plug abandoned[7] wells. See TEX. NAT. RES. CODE ANN. § 91.112(a)(3) (Vernon Supp. 2004-05). Accordingly, we conclude that the Commission has authority to plug an abandoned oil or gas well with these expenditures from the fund provided the Commission follows the plugging procedures set forth in chapter 89.

Chapter 89, pertaining to the Commission's authority over abandoned wells, first requires the Commission to determine whether an abandoned or nonoperating well that is "causing or is likely to cause pollution . . . or [where] gas or oil is escaping" was properly plugged. Id. § 89.041 (Vernon 2001). The determination is to be made at a hearing after due notice. See id. If the Commission determines that the well was not properly plugged, the Commission shall order the operator (or the nonoperator in certain instances) to plug the well. See id. § 89.042(a)-(b). The Commission may plug or replug the well if:

(1) the well was properly plugged according to rules in effect at the time the well was abandoned or ceased to be operated; or

(2) neither the operator nor nonoperator properly plugged the well, and

(A) neither the operator nor nonoperator can be found; or

(B) neither the operator nor nonoperator has assets with which to properly plug the well.[8]

Id. § 89.043(a) (Vernon Supp. 2004-05) (footnote added). If the Commission plugs the well, it may seek to recover its costs by issuing an order to the operator for reimbursement of plugging costs or by requesting that the attorney general file suit against the operator to recover the costs. See id. § 89.043(c).

B. Remediation of Oil or Gas Well- or Lease-site Surface Locations

You next inquire about the terms and conditions under which the Commission may use the fund to remediate oil or gas well-site or lease-site surface locations. See Request Letter, supra note 1, at 1. As with the plugging of wells, section 91.112(a) expressly authorizes the fund to be used by the Commission, as provided by section 91.113, to control or cleanup "oil and gas wastes or other substances or materials . . . that are causing or are likely to cause the pollution of surface or subsurface water." TEX. NAT. RES. CODE ANN. § 91.112(a)(2) (Vernon Supp. 2004-05). The language of section 91.112 is clear and unambiguous. Accordingly, we construe it by its plain language and conclude that the Commission may utilize funds in the fund to remediate oil and gas well sites so long as the Commission follows the provisions of section 91.113.[9]

C. Remediation of Commercial Disposal Sites

Your final inquiry relates to the Commission's ability to use the fund to clean up or remediate "commercial disposal sites." Request Letter, supra note 1, at 1. Neither the Natural Resources Code nor the Texas Administrative Code defines the term "commercial disposal site." However, the Commission, in its oil and gas regulations, has defined the term "commercial facility"[10] as a

facility whose owner or operator receives compensation from others for the storage, reclamation, treatment, or disposal of oil field fluids or oil and gas wastes that are wholly or partially trucked or hauled to the facility and whose primary business purpose is to provide these services for compensation if [the facility is permitted under sections 3.8, 3.9, 3.46 or 3.57 of this title.]

29 Tex. Reg. 6006 (2004), adopted 29 Tex. Reg. 8271 (2004) (to be codified as an amendment to 16 TEX. ADMIN. CODE § 3.78(a)(3) at § 3.78(a)(4)). For purposes of this opinion, we assume the term "commercial facility" encompasses the term commercial disposal sites.

An express purpose of the fund is the "controlling or cleaning up [of] oil and gas wastes or other substances or materials regulated by the commission under Section 91.101 that are causing or are likely to cause the pollution of surface or subsurface water, consistent with section 91.113." TEX. NAT. RES. CODE ANN. § 91.112(a)(2) (Vernon Supp. 2004-05). Section 91.101 gives the Commission authority over, among other things, the

discharge, storage, handling, transportation, reclamation, or disposal of oil and gas waste as defined in section 91.1011 of this subchapter, or of any other substance or material associated with any operation or activity regulated by the commission under subdivisions (1), (2), and (3) of this section.

Id. § 91.101(a)(4) (Vernon 2001) (text effective until delegation of RCRA authority to the Commission).[11] Section 91.1011 defines "oil and gas waste" as "waste that arises out of or incidental to the drilling for or producing of oil or gas." Id. § 91.1011(a) (text effective until delegation of RCRA authority to the Commission).[12] "Oil and gas waste" also includes "salt water, brine, sludge, drilling mud, and other liquid, semiliquid, or solid waste material." Id. § 91.1011(b). Pursuant to section 91.101(a)(4), the Commission also has authority over other substances and materials "associated with any operation or activity regulated by the commission under subdivisions (1), (2) and (3) of [section 91.101]." Id. § 91.101(a)(4). Subdivision (1) pertains to the drilling of exploratory wells; subdivision (2) relates to oil and gas production; and subdivision (3) deals with the operation, abandonment, and plugging of wells. Id. § 91.101(a)(1)-(3). Thus, the Commission's jurisdiction includes substances and materials involved with oil and gas production; drilling of exploratory wells; and the operation, abandonment and plugging of wells. By operation of sections 91.112(a)(2), sections 91.101(a)(1)-(4) and 91.1011, the fund can be used to remediate oil and gas waste and other substances and materials associated with certain oil and gas operations (collectively, "pollutant" or "pollutants") where they are causing or are likely to cause pollution of surface or subsurface water.

The focus of the fund is on the pollutant (oil and gas waste or other substances or materials) and the activity that caused it (operation or activity regulated by the Commission under subdivisions (1), (2) and (3)), rather than on the location (commercial disposal facility) of the pollutant. While the fund statute limits the use of the fund to pollutants resulting from one of the specified operations or activities within the jurisdiction of the Commission,[13] it does not limit the use of the fund to oil and gas well and lease sites. If the oil and gas waste or substance or material associated with the specified oil and gas activity within the jurisdiction of the Commission is causing or likely to cause pollution to surface or subsurface water, the fund may be used to clean up the pollutant. Therefore, we are of the opinion that the Commission may use the fund to remediate commercial disposal sites not associated with a particular well or lease site, but only to the extent that the site is contaminated with oil and gas wastes or other substances or materials associated with oil and gas production, the drilling of exploratory wells, and the operation, abandonment and plugging of wells.

SUMMARY

The Texas Railroad Commission is authorized to use the Oil Field Cleanup Fund to plug abandoned oil and gas wells and to remediate oil and gas well sites, provided the activities are conducted in compliance with other provisions of the Natural Resources Code.

The Texas Railroad Commission is also authorized to expend funds from the Oil Field Cleanup Fund to remediate commercial disposal sites to the extent a site is contaminated with oil and gas wastes or other substances or materials produced from oil and gas production, the drilling of exploratory wells, and the operation, abandonment and plugging of wells.

BARRY R. McBEE
First Assistant Attorney General

DON R. WILLETT
Deputy Attorney General for Legal Counsel

NANCY S. FULLER
Chair, Opinion Committee

Charlotte M. Harper
Assistant Attorney General, Opinion Committee

Footnotes

[1] See Letter from Honorable G. E. "Buddy" West, Chair, Committee on Energy Resources, to Honorable Greg Abbott, Texas Attorney General (Aug. 6, 2004) (on file with Opinion Committee, also available at http://www.oag.state.tx.us) [hereinafter Request Letter].

[2] There are two sections in the Natural Resources Code enumerated 91.101, and they are practically identical. The two versions differ only in the delegation of jurisdiction over hazardous waste. Certain hazardous wastes are currently subject to the jurisdiction of the Texas Commission on Environmental Quality. See 16 TEX. ADMIN. CODE § 3.30(b)(2)(B) (2004). Once the Environmental Protection Agency ("EPA") authorizes the Railroad Commission to administer RCRA, jurisdiction over such hazardous wastes will transfer from the TCEQ to the Commission. Id.

The version cited here is effective until the EPA so authorizes the Commission. The other version is effective upon EPA's authorization of the Commission. However, the language cited in this opinion is the same in both versions of section 91.101 so that the issue of EPA authorization of the Commission does not impact the analysis in this opinion.

[3] Section 91.113 is entitled "Investigation, Assessment, or Cleanup by Commission."

[4] Chapter 89, Natural Resources Code, pertains to abandoned wells.

[5] Title 3, Natural Resources Code, contains the provisions relating to oil and gas.

[6] "'Responsible person' means any operator or other person required by law, rules adopted by the commission, or a valid order of the commission to control or clean up the oil and gas wastes or other substances or materials." TEX. NAT. RES. CODE ANN. § 91.113(b) (Vernon 2001).

[7] In the oil and gas context, the term "abandoned" means to "abandon all work upon such a well in pursuance of the search for oil or gas." Struss v. Stoddard, 258 S.W.2d 413, 417 (Tex. Civ. App.-Fort Worth 1953, writ ref'd n.r.e.).

[8] Where the well is leaking salt water, oil or gas, or is likely to do so, and the leakage will cause a serious threat of pollution or injury, the Commission may direct the operator to take remedial action or to plug the well, or the Commission may plug the well without notice and hearing. See TEX. NAT. RES. CODE ANN. § 89.043(b) (Vernon Supp. 2004-05).

[9] Our conclusion is bolstered by other provisions in subchapter D. Section 91.112(b) requires the Commission to provide the legislature with an annual report on the fund. See id. § 91.112(b). The report is to include information on "the number of surface locations remediated, by region." Id. § 91.112(b)(5). Section 91.111 requires that the Commission create performance goals for the use of the fund to include surface locations to be remediated. See id. § 91.111(e)(3). Additionally, the Commission must report quarterly on the "number of sites remediated with money from the fund" to the Oil-Field Cleanup Fund Advisory Committee. Id. § 91.1135(e)(1)(E). Clearly, subchapter D contemplates that abandoned well sites be remediated by the Commission through the fund.

Our conclusion is also consistent with the Commission's construction of subchapter D. It is apparent that the Commission construes subchapter D as authority to use the fund to remediate oil and gas well and lease sites. In 2002 the Commission used the fund to conduct 355 cleanup activities, including 187 routine remediation operations. See RAILROAD COMMISSION OF TEXAS, OIL FIELD CLEANUP PROGRAM, ANNUAL REPORT-FISCAL YEAR 2002, OIL AND GAS DIVISION, § V, at 9. In 2003, the Commission conducted 326 cleanup activities, including 189 routine remediation operations, using the fund. See RAILROAD COMMISSION OF TEXAS, OIL FIELD CLEANUP PROGRAM, ANNUAL REPORT-FISCAL YEAR 2003, OIL AND GAS DIVISION, § V, at 11. While an agency's construction is not controlling, it is entitled to serious consideration. See Quick v. City of Austin, 7 S.W.3d 109, 123 (Tex. 1999) ("While not controlling, the contemporaneous construction of a statute by the administrative agency charged with its enforcement is entitled to great weight.").

[10] The term "commercial disposal well" is defined as a "well whose owner or operator receives compensation from others for the disposal of oil field fluids or oil and gas wastes that are wholly or partially trucked or hauled to the well, and the primary business purpose for the well is to provide these services for compensation." 16 TEX. ADMIN. CODE § 3.9(4) (2004) (Tex. R.R. Comm'n, Disposal Wells).

[11] There are two sections 91.1011. They are almost identical except in their treatment of jurisdiction over certain hazardous wastes. As with section 91.101, see supra note 2, the language of both of the provisions cited here is identical and the issue of EPA authorization does not impact our analysis.

[13] Jurisdiction of the Railroad Commission in oil and gas matters does not attach to land if there is no oil and gas activity in the area. R.R. Comm'n of Tex. v. Delhi-Taylor Oil Corp., 302 S.W.2d 273, 276 (Tex. Civ. App.-Austin 1957, writ ref'd n.r.e.).