# HILCORP ALASKA, LLC — Warning Letter

- **operation:** document
- **citation:** CPF 12022040WL
- **title:** HILCORP ALASKA, LLC — Warning Letter
- **source type:** enforcement
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2022-03-22
- **effective on:** Not available
- **summary:** CLOSED warning letter citing 191.17(c), 192.12(b)(2), 192.12(c).
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- **markdown:** https://regulus.evalyn.ai/document/phmsa-enforcement-12022040wl.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-enforcement-12022040wl
- **source url:** https://primis.phmsa.dot.gov/enforcement-data/case/12022040WL
**body:**

Warning Letter involving HILCORP ALASKA, LLC. PHMSA's enforcement data identifies the cited regulations as 191.17(c),  192.12(b)(2),  192.12(c). The case was opened on 2022-03-22 and is reported as closed as of 2022-03-22. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

12022040WL_Operator Response to Notice_08092022_(21-200333).pdf: https://primis.phmsa.dot.gov/enforcement-documents/12022040WL/12022040WL_Operator%20Response%20to%20Notice_08092022_(21-200333).pdf

12022040WL_Warning Letter_03222022_(21-200333).pdf: https://primis.phmsa.dot.gov/enforcement-documents/12022040WL/12022040WL_Warning%20Letter_03222022_(21-200333).pdf

12022040WL_Warning Letter_03222022_(21-200333)_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/12022040WL/12022040WL_Warning%20Letter_03222022_(21-200333)_text.pdf

12022040WL_Warning Letter_03222022_(21-200333)_text.pdf

WARNING LETTER
OVERNIGHT EXPRESS DELIVERY
March 22, 2022
Mr. Luke Saugier
Senior Vice President
Hilcorp Alaska, LLC
3800 Centerpoint Drive, Suite 1400
Anchorage, Alaska 99503
CPF 1-2022-040-WL
Dear Mr. Saugier:
From July 13 through July 16 and August 10 through August 11, 2021, representatives of the
Pipeline and Hazardous Materials Safety Administration (PHMSA) pursuant to Chapter 601 of 49
United States Code (U.S.C.) inspected Hilcorp Alaska, LLC’s (Hilcorp) Kenai Gas Field Storage,
Swanson River Gas Storage and Pretty Creek Gas Storage fields in Kenai Peninsula and
Matanuska Susitna Counties, Alaska.
As a result of the inspection, it is alleged that you have committed probable violations of the
Pipeline Safety Regulations, Title 49, Code of Federal Regulations (CFR). The items inspected
and the probable violations are:
1. § 191.17 Transmission systems; gathering systems; liquefied natural gas facilities;
and underground natural gas storage facilities: Annual report.
(a) …
(c) Underground natural gas storage facility. Each operator of a
UNGSF must submit an annual report through DOT Form PHMSA
7100.4-1. This report must be submitted each year, no later than March
15, for the preceding calendar year.
Hilcorp failed to include required information on its Underground Natural Gas Storage Facilities
(UNGSF) annual reports submitted in 2019 and 2021 pursuant to § 191.17(c).



CPF 1-2022-040-WL
During the inspection, PHMSA reviewed Hilcorp’s submitted UNGSF annual reports and found
that the Kenai Gas Field information was omitted from the 2018 annual report submitted on
3/12/2019. Additionally, one new well drilled at the Swanson River Field was not included in the
2020 annual report submitted on 3/15/2021.
Therefore, Hilcorp failed to submit accurate annual reports pursuant to § 191.17(c).
2. § 192.12 Underground natural gas storage facilities.
(a) …
(b) Depleted hydrocarbon and aquifer reservoir UNGSFs.
(1) …
(2) Each UNGSF that uses a depleted hydrocarbon reservoir or an
aquifer reservoir for natural gas storage and was constructed on or
before July 18, 2017, must meet the provisions of API RP 1171
(incorporated by reference, see § 192.7), sections 8, 9, 10, and 11, and
paragraph (c) of this section, by January 18, 2018, and must meet all
provisions of paragraph (d) of this section by March 13, 2021.
Hilcorp failed to meet the provisions of API RP 1171, Section 8. Specifically, Hilcorp failed to
fully develop, implement, and document a program to manage risk in accordance with API RP
1171, Section 8.2 (Section 8.2).
Section 8.2 states in part:
The operator shall develop, implement, and document a program to manage risk that
includes data collection, identification of potential threats and hazards to the storage
operation, risk analysis including estimation of the likelihood of occurrence of events
related to each threat, the likelihood of occurrence and potential severity of the
consequences of such events, and the preventive, mitigative, and monitoring processes to
reduce the likelihood of occurrence and/or the likelihood and severity of consequences,
and a periodic review and reassessment of the processes.
During the inspection, PHMSA reviewed Hilcorp’s Operation, Maintenance & Emergency
Response (OMER) manual, and risk model. PHMSA found that a risk management program had
not been fully developed, implemented, and documented according to Section 8.2. Hilcorp had not
identified the threats and hazards to the storage operation that would be used for risk analysis.
Also, Hilcorp had not estimated the likelihood of occurrence of events related to threats nor the
likelihood of potential severity of the consequences of such events in the form of a developed risk
model.
Therefore, Hilcorp failed to meet the provisions of Section 8.2.
3. § 192.12 Underground natural gas storage facilities.
(a) …
(1) …
(b) Depleted hydrocarbon and aquifer reservoir UNGSFs.
12022040WL_Warning Letter_03222022_(21-200333)_text Page 2 of 6



CPF 1-2022-040-WL
(2) Each UNGSF that uses a depleted hydrocarbon reservoir or an
aquifer reservoir for natural gas storage and was constructed on or
before July 18, 2017, must meet the provisions of API RP 1171
(incorporated by reference, see § 192.7), sections 8, 9, 10, and 11, and
paragraph (c) of this section, by January 18, 2018, and must meet all
provisions of paragraph (d) of this section by March 13, 2021.
Hilcorp failed to meet the provisions of API RP 1171, Section 9. Specifically, Hilcorp failed to
perform annual visual inspection of each wellhead assembly for leaks during 2018 and 2019 in
accordance with API RP 1171, Section 9.3.2 (Section 9.3.2).
Section 9.3.2 states in part, “The operator will visually inspect each wellhead assembly at least
annually for leaks.”
During the inspection, Hilcorp was not able to provide records of visual inspection of each
wellhead assembly for leaks for 2018 and 2019.
Therefore, Hilcorp failed to meet the provisions of Section 9.3.2.
4. § 192.12 Underground natural gas storage facilities.
(a) …
(b) Depleted hydrocarbon and aquifer reservoir UNGSFs.
(1) …
(2) Each UNGSF that uses a depleted hydrocarbon reservoir or an
aquifer reservoir for natural gas storage and was constructed on or
before July 18, 2017, must meet the provisions of API RP 1171
(incorporated by reference, see § 192.7), sections 8, 9, 10, and 11, and
paragraph (c) of this section, by January 18, 2018, and must meet all
provisions of paragraph (d) of this section by March 13, 2021.
Hilcorp failed to meet the provisions of API RP 1171, Section 9. Specifically, Hilcorp failed to
test the operation of the master valve and wellhead pipeline isolation valve at least annually for
proper function and ability to isolate the well during 2018 and 2019 in accordance with API RP
1171, Section 9.3.2 (Section 9.3.2).
Section 9.3.2 states in part, “The operator shall test the operation of the master valve and wellhead
pipeline isolation valve at least annually for proper function and ability to isolate the well.”
During the inspection, Hilcorp was not able to provide records of master valve and wellhead
pipeline isolation valve tests for 2018 and 2019.
Therefore, Hilcorp failed to meet the provisions of Section 9.3.2.
5. § 192.12 Underground natural gas storage facilities.
(a) …
(b) Depleted hydrocarbon and aquifer reservoir UNGSFs.
12022040WL_Warning Letter_03222022_(21-200333)_text Page 3 of 6



CPF 1-2022-040-WL
(1) …
(2) Each UNGSF that uses a depleted hydrocarbon reservoir or an
aquifer reservoir for natural gas storage and was constructed on or
before July 18, 2017, must meet the provisions of API RP 1171
(incorporated by reference, see § 192.7), sections 8, 9, 10, and 11, and
paragraph (c) of this section, by January 18, 2018, and must meet all
provisions of paragraph (d) of this section by March 13, 2021.
Hilcorp failed to meet the provisions of API RP 1171, Section 8. Specifically, Hilcorp did not
review the results of the risk assessment to determine whether the risk assessment, resulting
prioritization, or ranking represents its facilities and characterizes the risks in accordance with API
RP 1171, Section 8.5.2 (Section 8.5.2).
Section 8.5.2 states in part, “The operator shall review the results of the risk assessment to
determine whether the risk assessment, resulting prioritization, or ranking represents its facilities
and characterizes the risks.”
During the inspection, Hilcorp did not provide any records of the reviews of its risk assessment
results for 2019 and 2020.
Therefore, Hilcorp failed to meet the provisions of Section 8.5.2.
6. § 192.12 Underground natural gas storage facilities.
(a) …
(c) Procedural manuals. Each operator of a UNGSF must prepare
and follow for each facility one or more manuals of written procedures
for conducting operations, maintenance, and emergency preparedness
and response activities under paragraphs (a) and (b) of this section.
Each operator must keep records necessary to administer such
procedures and review and update these manuals at intervals not
exceeding 15 months, but at least once each calendar year. Each
operator must keep the appropriate parts of these manuals accessible
at locations where UNGSF work is being performed. Each operator
must have written procedures in place before commencing operations
or beginning an activity not yet implemented.
Hilcorp failed to follow its manual of written procedures for conducting operations, maintenance
and emergency preparedness and response activities. Specifically, Hilcorp failed to follow its
OMER, Section 7.3 regarding documenting the well annulus pressure each day for all storage
wells.
During the inspection, Hilcorp’s OMER was reviewed. The OMER, Section 7.3 stated in part,
“To confirm continued mechanical integrity, Hilcorp shall record the pressure in the well and
annulus during storage operations each day for all storage wells.”
When requested, Hilcorp presented annulus pressure records that showed that annulus pressures
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CPF 1-2022-040-WL
were not recorded daily in the Kenai Storage Field for the following wells: Well 005L (March to
October in 2020), Well 44030 (2018), Well 43-006RD (2018 to 2020).
Therefore, Hilcorp failed to follow its OMER, Section 7.3.
7. § 192.12 Underground natural gas storage facilities.
(a) …
(c) Procedural manuals. Each operator of a UNGSF must prepare
and follow for each facility one or more manuals of written procedures
for conducting operations, maintenance, and emergency preparedness
and response activities under paragraphs (a) and (b) of this section.
Each operator must keep records necessary to administer such
procedures and review and update these manuals at intervals not
exceeding 15 months, but at least once each calendar year. Each
operator must keep the appropriate parts of these manuals accessible
at locations where UNGSF work is being performed. Each operator
must have written procedures in place before commencing operations
or beginning an activity not yet implemented.
Hilcorp failed to review and update its Emergency Action Plan (EAP) manual at intervals not to
exceed 15 months, but at least once each calendar year.
During the inspection, PHMSA requested Hilcorp’s EAP documentation and the reviews for
Swanson River and Pretty Creek emergency plans. Records of a review of the EAP were not
available for 2020.
Therefore, Hilcorp failed to review its EAP manual at least once each calendar year.
Under 49 U.S.C. § 60122 and 49 CFR § 190.223, you are subject to a civil penalty not to exceed
$225,134 per violation per day the violation persists, up to a maximum of $2,251,334 for a related
series of violations. For violation occurring on or after January 11, 2021 and before May 3, 2021,
the maximum penalty may not exceed $222,504 per violation per day the violation persists, up to
a maximum of $2,225,034 for a related series of violations. For violation occurring on or after
July 31, 2019 and before January 11, 2021, the maximum penalty may not exceed $218,647 per
violation per day the violation persists, up to a maximum of $2,186,465 for a related series of
violations. For violation occurring on or after November 27, 2018 and before July 31, 2019, the
maximum penalty may not exceed $213,268 per violation per day, with a maximum penalty not to
exceed $2,132,679. For violation occurring on or after November 2, 2015 and before November
27, 2018, the maximum penalty may not exceed $209,002 per violation per day, with a maximum
penalty not to exceed $2,090,022.
We have reviewed the circumstances and supporting documents involved in this case and have
decided not to conduct additional enforcement action or penalty assessment proceedings at this
time. We advise you to correct the items identified in this letter. Failure to do so will result in
Hilcorp Alaska, LLC being subject to additional enforcement action.
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CPF 1-2022-040-WL
No reply to this letter is required. If you choose to reply, in your correspondence please refer to
CPF 1-2022-040-WL. Be advised that all material you submit in response to this enforcement
action is subject to being made publicly available. If you believe that any portion of your
responsive material qualifies for confidential treatment under 5 U.S.C. 552(b), along with the
complete original document you must provide a second copy of the document with the portions
you believe qualify for confidential treatment redacted and an explanation of why you believe the
redacted information qualifies for confidential treatment under 5 U.S.C. 552(b).
Sincerely,
Robert Burrough
Director, Eastern Region, Office of Pipeline Safety
Pipeline and Hazardous Materials Safety Administration
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