Gulfport Energy : 2023 Corporate Sustainability Report

CORPORATE SUSTAINABILITY REPORT

Table of Contents
FORWARD LOOKING STATEMENT
& NON-GAAP FINANCIAL MEASURES	4
LETTER FROM THE CEO	5
ABOUT GULFPORT ENERGY	7
OUR APPROACH TO
RESPONSIBLE REPORTING	9
RESPONSIBLY SOURCED GAS	10
CORE VALUES	11
GOVERNANCE	12
Board Summary	15
Stakeholder Engagement	15
Executive Compensation Driving
ESG Performance	17
Risk Mitigation Approach	19
Business Code of Conduct & Ethics	19
Supply Chain	20
Political & Trade Participation	21
Cybersecurity	21

ENVIRONMENT	22
Climate Strategy & Environmental
Stewardship	23
Biodiversity & Land Use	24
Flared Gas	24
Leak Detection & Repair Program	24
Scope 2 Emissions	25
Water Conservation	25
Managing & Reducing Waste	26
Spill Preventions & Response	26
SAFETY	27
Employee & Contractor Safety	29
Driver Safety	29
Emergency Preparedness	29
WORKPLACE	31
Culture	32
Diversity, Equity & Inclusion	32
Board Diversity	33
Human Rights & Security	33
Benefits at Gulfport	34
Community Engagement	35
Partnering with Our Owners	36

PERFORMANCE METRICS	37
Company	38
TCFD Metrics	44
SASB Metrics	48
AXPC Metrics	56

INTRODUCTION 01

Forward Looking Statement

INTRODUCTION

RESPONSIBLE REPORTING

GOVERNANCE

ENVIRONMENT

SAFETY

WORKPLACE

PERFORMANCE METRICS

COMPANY

TCFD

SASB

AXPC

This report includes "forward-looking statements" for purposes of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements are statements other than statements of historical fact. They include statements regarding Gulfport's current expectations, management's outlook guidance or forecasts of future events, projected cash flow and liquidity, inflation, share repurchases, its ability to enhance cash flow and financial flexibility, future production and commodity mix, plans and objectives for future operations, the ability of our employees, portfolio strength and operational leadership to create long-term value and the assumptions on which such statements are based. Gulfport believes the expectations

and forecasts reflected in the forward-looking statements are reasonable, Gulfport can give no assurance they will prove to have been correct. They can be affected by inaccurate or changed assumptions or by known or unknown risks and uncertainties. Important risks, assumptions and other important factors that could cause future results to differ materially from those expressed in the forward-looking statements are described under "Risk Factors" in Item 1A of Gulfport's annual report on Form 10-K for the year ended December 31, 2022 and any updates to those factors set forth in Gulfport's subsequent quarterly reports on Form 10-Q or current reports on Form 8-K (available at https://www.ir.gulfportenergy.com/all-sec-filings). Gulfport undertakes no obligation to release publicly any revisions to any forward-looking statements,

to report events or to report the occurrence of unanticipated events.

Gulfport's proved reserves and adjusted proved reserves are those quantities of natural gas, oil and natural gas liquids, which, by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be economically producible-from a given date forward, from known reservoirs, and under existing economic conditions, operating methods and government regulations- 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.

Gulfport's estimate of its total proved reserves is based on reports prepared by Netherland, Sewell Associates, Inc., independent petroleum engineers and internal estimates. Factors affecting ultimate recovery include the scope of Gulfport's ongoing drilling program, which will be directly affected by the availability of capital, drilling and production costs, availability of drilling services and equipment, drilling results, lease expirations, transportation constraints, regulatory approvals, actual drilling results, including geological and mechanical factors affecting recovery rates, and other factors. Estimates may change significantly as development of Gulfport's natural gas, oil and natural gas liquids assets provide additional data. Gulfport's production forecasts and expectations for future periods are dependent upon many assumptions, including estimates of production decline rates from existing wells and the undertaking and outcome

of future drilling activity, which may be affected by significant commodity price declines or drilling cost increases.

Gulfport's management uses certain non-GAAP financial measures for planning, forecasting and evaluating business and financial performance, and believes that they are useful tool to assess Gulfport's operating results. Although these are not measures of performance calculated in accordance with generally accepted accounting principles (GAAP), management believes that these financial measures are useful to an investor in evaluating Gulfport because (i) analysts utilize these metrics when evaluating company performance and

have requested this information as of a recent practicable date, (ii) these metrics are widely used to evaluate a company's operating performance, and (iii) we want to provide updated information to investors. Investors should not view these metrics as a substitute for measures of performance that are calculated in accordance with GAAP. In addition, because all companies do not calculate these measures identically, these measures may not be comparable to similarly titled measures of other companies. These non-GAAP measure should be considered in addition to, but not instead of, the financial statements prepared in accordance

with GAAP.

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INTRODUCTION

RESPONSIBLE REPORTING

GOVERNANCE

ENVIRONMENT

SAFETY

WORKPLACE

PERFORMANCE METRICS

COMPANY

TCFD

SASB

AXPC

Letter from the CEO

Dear Stakeholders,

On behalf of our employees and Board of Directors, I am pleased to share with you Gulfport's 2023 Corporate Sustainability Report summarizing our ongoing efforts towards developing a strong and more sustainable company. This report is a direct reflection of Gulfport's continuous improvement culture and our commitment to responsible and transparent environmental, social and governance practices.

As a leading natural gas producer in the Utica, Gulfport is committed to emission intensity reductions throughout our operations. During 2022, the Company completed a formal gap assessment aimed at improving our company practices and policies regarding emissions management. On the positive findings of this analysis, Gulfport initiated the responsibly sourced gas certification process and partnered with MiQ, a non-profit organization dedicated to reducing methane emissions through Independently Certified Gas. An extensive independent audit was conducted assessing Gulfport's methane emissions performance to certify our natural gas production in Appalachia. I am pleased to report that we recently completed the certification process with MiQ and received an "A" grade for our Appalachia assets. This achievement highlights Gulfport's ongoing commitment to responsibly produce and deliver independently certified gas to domestic markets. In the SCOOP, the Company continues to focus on methane emission reductions and has instituted a program to retrofit air compressors on our well sites in order to run production equipment on air versus natural gas. During 2023, the Company is converting ~40% of the natural gas pneumatic devices to

WE REDUCED BOTH OUR

GREENHOUSE GAS AND

METHANE INTENSITIES

IN 2022

compressed air on our highest impact pad sites. We intend to design our future SCOOP pad sites with compressed air and plan to consider gas certification for these molecules in the future. As a direct result of these efforts, we reported another year of reducing both our greenhouse gas and methane intensities, with our methane intensity rate improving by approximately 25%, compared to 2021 results.

The health, safety and wellbeing of our employees, contractors and everyone surrounding our operations is of utmost importance to all of us

at Gulfport. We maintain our reputation as a safe and environmentally responsible operator through continuous emphasis on our operational procedures, highlighted through our Work Safe Campaign which focuses on a combination of twelve rules derived from company policies and cultural conditions that target risk mitigation and increase safety and execution awareness. Our focus on health and safety during 2022 is demonstrated by the decrease in our full year total recordable incidents by over 40% when compared to full year 2021 results. Our board and leadership team closely monitor our safety performance and continually assess our health and safety initiatives to drive improvements to our evolving safe work practices.

Being a good, reliable community partner is central to our company culture. During 2022, Gulfport formed our Community Impact Committee consisting of employees from our Oklahoma

City headquarters as well as field offices in both Oklahoma and Ohio. This committee is dedicated to seeking partnerships and volunteer opportunities prioritizing local food insecurity, youth education, environmental stewardship and military support

in the areas where we live and operate. Over the past twelve months, we have supported over 30 organizations through our time and monetary contributions and look forward to continuing to be an integral partner in our local communities.

While we are proud of our progress, we recognize that there is more work to be done to shape our sustainable future. We remain committed to increasing value for our shareholders while being a good steward of the assets we operate, which we believe benefits our stakeholders.

JOHN REINHART

PRESIDENT, CHIEF EXECUTIVE

OFFICER AND DIRECTOR

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RESPONSIBLE REPORTING 02

Responsible Reporting: About Gulfport Energy

INTRODUCTION

RESPONSIBLE REPORTING

GOVERNANCE

ENVIRONMENT

SAFETY

WORKPLACE

PERFORMANCE METRICS

COMPANY

TCFD

SASB

AXPC

Gulfport is an independent natural gas-weighted exploration and production company with assets primarily located in Appalachia, targeting the Utica and Marcellus formations, and the Anadarko basin, targeting the SCOOP Woodford and Springer formations. Our corporate headquarters are in Oklahoma City, Oklahoma and shares of Gulfport's Common Stock trade on the New York Stock Exchange (NYSE) under the ticker symbol "GPOR".

Gulfport aims to create sustainable value through the economic development of our significant resource plays. Our strategy is to develop our assets in a manner that generates sustainable cash flow, improves margins and operating efficiencies, while improving our environmental, social and governance (ESG) and safety performance. To accomplish these goals, we allocate capital to projects we believe offer the highest rate of return and deploy leading techniques and technologies in our development efforts. We believe our plan

to generate free cash flow on an annual basis will allow us to further strengthen our balance sheet, return capital to shareholders and increase our resource depth through incremental leasehold opportunities that provide optionality to our future development plans. Gulfport carries out its strategy with utmost consideration for its employees and the regions and communities in which we operate, while always prioritizing our dedication to environmental stewardship in everything we do.

We are a team of 223 innovative thought leaders. We have offices in Oklahoma City, Oklahoma, St. Clairsville, Ohio and Lindsay, Oklahoma.

2022 Company Statistics

262,000	4.0 Tcfe	90%	223
NET RESERVOIR	YEAR-END 2022	NATURAL	EMPLOYEES
ACRES	NET PROVED	GAS
	RESERVES
983.4	~2.9	~$240
MMcfe	million	million
PER DAY DELIVERED	SHARES OF	FULL-YEAR 2022
TOTAL NET	COMMON STOCK	ADJUSTED FREE
PRODUCTION	REPURCHASED FOR	CASH FLOW
	~$250 MILLION	(NON-GAAP)

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Responsible Reporting: 2022 Company Highlights

INTRODUCTION

RESPONSIBLE REPORTING

GOVERNANCE

ENVIRONMENT

SAFETY

WORKPLACE

PERFORMANCE METRICS

COMPANY

TCFD

SASB

AXPC

ENVIRONMENTAL HIGHLIGHTS

•Received an "A" Grade MiQ

Certification for all Appalachia assets in 2023

•Lowered methane intensity by 25%

• Retrofitting ~40% of SCOOP natural gas pneumatic devices with compressed air in 2023
• Reused or recycled 71% of our water generated from production and flowback

SOCIAL HIGHLIGHTS

• Increased diversity in the workplace with 45% of new hires identifying as gender or ethnically diverse
• Delivered training for mitigating bias in the workforce to all employees
• Reduced combined total recordable incident rate by 43%
• Partnered with organizations that support Gulfport's key focus areas in Oklahoma and Ohio through volunteering and monetary contributions

CORPORATE GOVERNANCE HIGHLIGHTS

• Appointed two gender diverse Directors resulting in 60% diversity of Independent Directors
• Separated Chief Executive Officer and Chair roles
  in January 2023
• Retained Lead Independent Director role
• Increased short-termcompensation incentive ESG metrics to a 30% weighting emphasizing responsibly sourced gas, safety, spill reduction, DEI training and succession planning

2023 Highlight	RECEIVED AN "A" GRADE MIQ CERTIFICATION
FOR ALL APPALACHIA ASSETS IN 2023

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Responsible Reporting: Our Approach to Responsible Reporting

INTRODUCTION

RESPONSIBLE REPORTING

GOVERNANCE

ENVIRONMENT

SAFETY

WORKPLACE

PERFORMANCE METRICS

COMPANY

TCFD

SASB

AXPC

Gulfport is proud to play its part in the responsible and efficient development of domestic natural gas which is critical to our country's economic success as it provides the primary fuel for efficient power generation in the United States. We strive to reduce our environmental impact, to invest in our people and communities and to prioritize our dedication to environmental stewardship in everything we do.

ABOUT OUR DISCLOSURES

To best respond to the interests of our stakeholders, we reference several reporting standards when preparing our report content. These guidelines offer third-party recommendations for the most transparent and relevant content and allow for greater comparison among peer companies.

Our sustainability report content and performance data align with:

• TCFD Framework
• SASB Standards - Value Reporting Foundation/ SASB Standards: Oil & Gas - Exploration & Production
• AXPC's ESG Metrics and Framework

An index that maps content to disclosures is available here.

ESG OVERSIGHT

Nominating, Environmental, Social and Governance Committee

• Oversees our practices relating to health, safety and environmental protection, as well as social and governance matters
• Monitors matters related to Board and Committee composition, Board performance and best practices in corporate governance

Audit Committee

• Oversees the accounting and financial reporting processes and compliance with legal and regulatory requirements

Compensation Committee

• Oversees our compensation policies and practices and their impact on risk and risk management

Each Committee Chair provides independent leadership for the purposes of many functions delegated by our Board of

such Committee.

PERFORMANCE METRICS

Our performance data table reflectsour operations at year-end 2022 and includes year-over-year comparison providing a more thorough performance evaluation. The data table was subject to review by our Internal Audit team and is believed to be correct at the time of reporting. For certain reporting elements, later changes in categorization could affect data and will be updated for accuracy on

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Responsible Reporting: Responsibly Sourced Gas

INTRODUCTION

RESPONSIBLE REPORTING

GOVERNANCE

ENVIRONMENT

SAFETY

WORKPLACE

PERFORMANCE METRICS

COMPANY

TCFD

SASB

AXPC

Responsibly sourced gas (RSG) is natural gas produced by companies that meet independently assessed and verified ESG standards. Gulfport's Appalachia assets were independently analyzed by MiQ-an independent non-profit organization dedicated to facilitating a rapid reduction in methane emissions from the oil and gas sector. The MiQ standard assesses production based on how well operators deploy integrated technologies to detect, measure and reduce emissions. In addition, the MiQ standard also evaluates policies, designs and work practices to determine operators' preparedness to prevent future methane emissions.

Gulfport's performance was extensively evaluated for every element of the MiQ standard. This included independently auditing the Company's methane intensity, operational designs, policies, practices and monitoring technology deployment. Through this process, we formalized many general practices into written company procedures, expanded or updated other existing procedures and programs and implemented additional methane detection and monitoring. The MiQ standard incorporates A to F grades. Gulfport achieved the highest available

A grade in all three major areas: calculated methane intensity, robust monitoring technology deployment (at facility- and source-levels) and company practices.

ACHIEVED 'A GRADE' FOR

APPALACHIA GAS IN ALL

THREE MAJOR MIQ AREAS

This rigorous independent process validated Gulfport's position as a leader in RSG, and it provided opportunities for continuous improvement reducing our methane intensity.

Examples of Gulfport efforts to reducing emissions and intensity:

• Education, training and awareness
  to ensure employees are knowledgeable emission types and equipment susceptible to leaks
• Reporting systems for methane emissions, and emission events
• Estimation of methane emissions in with current standards and regulations
• Development of a detailed leak detection repair procedure and audio/visual/olfactory inspection procedure
• Remote telemetric monitoring and operation of systems

• Preventative maintenance program in place for certain well pads with plans to expand to others
• Automated process for wells to shut in when combustor or flare is down to avoid excess emissions
• Creation of, and engagement from, Gulfport's Methane Emissions Reduction Team (MERT) to share ideas for methane reduction initiatives

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