2023

Calgary, Alberta, November 7, 2023: High Arctic Energy Services Inc. (TSX: HWO) “High Arctic” or the “Corporation” announces that it has restated and refiled certain historical interim and annual filings to correct and enhance information pertaining to the Corporation’s Production Services business segment. The nature of the changes in the filings pertains to additional disclosures, description of accounting judgements, correction of errors in business segment financial allocations, and improving consistency of presentation. Additional disclosures have been made to provide clarity on the Canadian well servicing and snubbing assets sold in 2022 and the remaining assets capable of generating revenue in the Corporation’s Production Services segment. These same additional disclosures are included in the Corporation’s amended and restated 2022 Annual Information Form as well as a more fulsome description of the Corporation’s current business. No changes have been made to the balances reported in the financial statements for the periods involved. Specifically, there have been no changes to the Corporation’s Consolidated Statement of Financial Position, Consolidated Statement of Loss and Comprehensive Loss, Consolidated Statement of Changes in Shareholders’ Equity and Consolidated Statement of Cash Flows. Accordingly, the previously issued annual audited consolidated financial statements for the year ended December 31, 2022 and Management’s Discussion and Analysis for both the year ended December 31, 2022 and the three and six-month period ended June 30, 2023 have been restated and refiled. High Arctic has also refiled its 2022 Annual Information Form that was originally filed on March 28, 2023. About High Arctic High Arctic is an energy services provider. High Arctic is a market leader in Papua New Guinea providing drilling and specialized well completion services and supplies rental equipment including rig matting, camps, material handling and drilling support equipment. In western Canada High Arctic provides pressure control equipment on a rental basis to exploration and production companies. For further information, please contact: Mike Maguire Chief Executive Officer 1.587.318.3826 1.800.668.7143 High Arctic Energy Services Inc. Suite 2350, 330–5th Avenue SW Calgary, Alberta, Canada T2P 0L4 website: haes.ca Email: info@haes.ca 231107 – High Arctic Announces Refiling of Restated Financial Disclosures

Calgary, Alberta, October 23, 2023: High Arctic Energy Services Inc. (TSX: HWO) “High Arctic” or the “Corporation” updates shareholders on previously announced reorganization, monthly dividend and the timing for its third quarter results. Reorganization The Corporation continues to research an alternative structure that will meet both the goals of strategic business management and governance concerns of shareholders. While the Corporation is optimistic about achieving a reorganization acceptable to shareholders, there is no certainty at this time. Dividend Suspension With the delay in the reorganization, the Corporation believes it is in the best interests of shareholders to preserve cash to maximize the opportunity to tax-efficiently return capital. The Corporation is weighing balance sheet strength in conjunction with the merit of a tax-efficient return of capital distribution up to a maximum of $38.2 million (75 cents per fully diluted share). Accordingly, High Arctic is announcing it is suspending its monthly $0.005 per share dividend effective immediately as the Board of Directors is of the view that continuing the monthly dividend is no longer in the best interest of shareholders. Timing of Third Quarter Results High Arctic intends to release its 2023 third quarter results on Wednesday November 8, 2023 after markets close and has scheduled a conference call to begin at 10:00 am MT (12:00 pm ET) on Thursday, November 9, 2023. The conference call dial-in numbers are 1-800-806-5484 or 416-340-2217 and the participant passcode is 6678175#. Participants joining from outside North America can find International dial-in numbers at: https://www.confsolutions.ca/ILT?oss=7P1R8009525114 An archived recording of the conference call will be available approximately two hours after the call ends by dialing 1-800-408-3053 and will remain available until December 31, 2023. An audio recording of the conference call will also be available within 24 hours on High Arctic’s website. The Corporation’s Third Quarter Financial Statements and Management’s Discussion & Analysis will be posted to High Arctic’s website and SEDAR after the results are released. About High Arctic High Arctic is an energy services provider. High Arctic is a market leader in Papua New Guinea providing drilling and specialized well completion services and supplies rental equipment including rig matting, camps, material handling and drilling support equipment. In western Canada High Arctic provides pressure control equipment on a rental basis to exploration and production companies. For further information, please contact: Mike Maguire Chief Executive Officer 1.587.318.3826 1.800.668.7143 High Arctic Energy Services Inc. Suite 2350, 330–5th Avenue SW Calgary, Alberta, Canada T2P 0L4 website: haes.ca Email: info@haes.ca 231023 – High Arctic Provides Reorganization Update Dividend Suspension and Timing of Q3 Results

[fusion_builder_container type=”flex” hundred_percent=”no” equal_height_columns=”no” menu_anchor=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” background_color=”” background_image=”” background_position=”center center” background_repeat=”no-repeat” fade=”no” background_parallax=”none” parallax_speed=”0.3″ video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”16:9″ video_loop=”yes” video_mute=”yes” overlay_color=”” video_preview_image=”” border_color=”” border_style=”solid” padding_top=”” padding_bottom=”” padding_left=”” padding_right=””][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ background_position=”left top” background_color=”” border_color=”” border_style=”solid” border_position=”all” spacing=”yes” background_image=”” background_repeat=”no-repeat” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”0px” margin_bottom=”0px” class=”” id=”” animation_type=”” animation_speed=”0.3″ animation_direction=”left” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” center_content=”no” last=”true” min_height=”” hover_type=”none” link=”” border_sizes_top=”” border_sizes_bottom=”” border_sizes_left=”” border_sizes_right=”” first=”true”][fusion_text]   Presentation given by CEO Mike Maguire at the Schachter Catch the Energy Conference in Calgary, Canada on October 14, 2023.   HWO Schacter CTE 2023 Conference [/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]

Calgary, Alberta, September 28, 2023: High Arctic Energy Services Inc. (TSX: HWO) “High Arctic” or the “Corporation” provides an update on the contemplated reorganization of the Corporation, including the associated tax efficient $38.2 million return of capital, the Papua New Guinea focused business spin-out to shareholders, refocus of the Canadian business and an update on its Papua New Guinea (“PNG”) operations. The Corporation has received feedback from shareholders and is working with its advisors on the reorganization plan to incorporate key elements of the shareholder feedback. The High Arctic board has reserved its final decision to proceed with the reorganization until these matters and ongoing strategic review have been addressed to their satisfaction, requisite regulatory approvals have been received, and the materials are ready to present to shareholders. The Corporation cautions readers that there is no certainty that the reorganization will proceed in the format previously announced, or at all. In PNG, Rig 103 has continued to operate reliably since returning to work and in the process our crews have passed through 7 years and 3.5 million work hours of recordable incident free operations. Activity is nearing the halfway point of the four currently committed wells for our primary customer, under the three-year operations and management contracts that mature in August 2025. High Arctic observes that the Papua-LNG partners have pushed back guidance for the target final investment decision on the project website https://papualng.com.pg/ to “early 2024”. We have also observed that the project planning involves the creation of road access to the development well sites and as a result will likely not specifically require heli-portable drilling rigs. High Arctic was involved in drilling four of the Antelope field appraisal wells with our heli-portable drilling rigs. While High Arctic has specialist PNG drilling knowledge that we strongly believe is critical to successful well delivery, there is no guarantee that our rigs will be deemed suitable for, or that we will be contracted to conduct the Papua-LNG development drilling at the Elk / Antelope fields. Forward-Looking Statements This press release contains forward-looking statements. When used in this document, the words “may”, “would”, “could”, “will”, “intend”, “plan”, “anticipate”, “believe”, “seek”, “propose”, “estimate”, “expect”, and similar expressions are intended to identify forward-looking statements. Such statements reflect the Corporation’s current views with respect to future events and are subject to certain risks, uncertainties and assumptions. Many factors could cause the Corporation’s actual results, performance or achievements to vary from those described in this press release. Should one or more of these risks or uncertainties materialize, or should assumptions underlying forward-looking statements prove incorrect, actual results may vary materially from those described in this press release as intended, planned, anticipated, believed, estimated or expected. Specific forwardlooking statements in this press release include, but are not limited to, statements pertaining to the following:  the High Arctic board’s final decision to proceed with the reorganization,  the level of certainty that the reorganization will proceed in the format previously announced, or at all,  that Rig 103 will drill the four currently committed wells for our primary customer, and any wells following those,  Papua-LNG partners target final investment decision on the project of “early 2024”,  whether High Arctic’s heli-portable drilling rigs will be suitable for the Papua-LNG project, and  whether High Arctic will be contracted to conduct the Papua-LNG development drilling. The Corporation’s actual results could differ materially from those anticipated in these forward-looking statements as a result of the risk factors set forth above and elsewhere in this press release. The forward-looking statements contained in this press release are expressly qualified in their entirety by this cautionary statement. These statements are given only as of the date of this press release. The Corporation does not assume any obligation to update these forward-looking statements to reflect new information, subsequent events or otherwise, except as required by law. About High Arctic High Arctic is an energy services provider. High Arctic is a market leader in Papua New Guinea providing drilling and specialized well completion services and supplies rental equipment including rig matting, camps, material handling and drilling support equipment. In western Canada, High Arctic provides pressure control equipment on a rental basis to exploration and production companies. For further information, please contact: Mike Maguire Chief Executive Officer 1.587.318.3826 1.800.668.7143 High Arctic Energy Services Inc. Suite 2350, 330–5th Avenue SW Calgary, Alberta, Canada T2P 0L4 website: haes.ca Email: info@haes.ca 230928 – High Arctic Provides Reorganization and PNG Update – Copy

Calgary, Alberta, August 11, 2023: High Arctic Energy Services Inc. (TSX: HWO) “High Arctic” or the “Corporation” announces today that Mr. Lonn Bate has been appointed Interim Chief Financial Officer, effective August 17, 2023. Mr. Bate initially joined the Corporation in March 2023 in a consulting capacity. Mr. Bate is a Chartered Professional Accountant, CA with over 25 years of broad financial leadership including substantial periods in senior executive roles of public and private junior energy and energy services companies. Mr. Bate’s experience extends to international as well as the Canadian energy sector. He brings extensive knowledge in financial stewardship, strategic planning and analysis, equity and debt financing, company reorganizations, mergers and acquisitions, and consolidating global finance teams. Mike Maguire, High Arctic CEO stated: “I am pleased to welcome Mr. Bate to the High Arctic leadership team as Interim CFO. Lonn takes on a key role during a pivotal period for High Arctic as we contemplate a reorganization of the corporation, including the sale of the corporation’s Papua New Guinea focused business to shareholders and a refocus of the Canadian business.” As announced on May 23, 2023 Mr. Lance Mierendorf, High Arctic’s Chief Financial Officer for the past two years, tendered his resignation with effect August 17. Mike Maguire further commented: “On behalf of the Board of Directors and the team here at High Arctic, we wish Lance well in his career pursuits and extend thanks for the professionalism and dedication during his tenure with the company.” About High Arctic High Arctic is an energy services provider. High Arctic is a market leader in Papua New Guinea providing drilling and specialized well completion services and supplies rental equipment including rig matting, camps, material handling and drilling support equipment. In western Canada, High Arctic provides pressure control equipment on a rental basis to exploration and production companies. For further information, please contact: Mike Maguire Chief Executive Officer 1.587.318.3826 1.800.668.7143 High Arctic Energy Services Inc. Suite 2350, 330–5th Avenue SW Calgary, Alberta, Canada T2P 0L4 website: haes.ca Email: info@haes.ca 230811 – High Arctic Announces Interim CFO Placement_Final

Calgary, Alberta, August 9, 2023: High Arctic Energy Services Inc. (TSX: HWO) “High Arctic” or the “Corporation” announces today that Daniel Bordessa has tendered his resignation as a director effective immediately. Mr. Bordessa has been a director of the Corporation since April 2011. Mr. Bordessa sits on the Board’s Audit, QHSE, Remuneration and Executive Committees. The Board will replace Mr. Bordessa on these committees from among the four remaining directors. Mr. Bordessa is a partner of Cyrus Capital Partners, L.P. (“Cyrus”). Cyrus is the investment manager to certain funds who are the sole shareholders of FBC Holdings Sàrl (“FBC”). FBC owned 21,916,634 common share or 45.0% of the issued and outstanding common shares of High Arctic as of July 20, 2023. The Corporation has been informed by Cyrus that they continue to support High Arctic and its Board of Directors in their efforts to maximize value for all shareholders through the contemplated reorganization. Michael Binnion, High Arctic’s Chairman stated: “On behalf of the board I would like to thank Dan for his dedication and commitment to High Arctic over the past twelve years. Dan has played an important role in the evolution of High Arctic and we wish him all the best. His departure provides the rest of the board the opportunity to independently contemplate imminent key decisions, in the interest of all shareholders.” About High Arctic High Arctic is an energy services provider. High Arctic is a market leader in Papua New Guinea providing drilling and specialized well completion services and supplies rental equipment including rig matting, camps, material handling and drilling support equipment. In western Canada, High Arctic provides pressure control equipment on a rental basis to exploration and production companies. For further information, please contact: Mike Maguire Chief Executive Officer 1.587.318.3826 1.800.668.7143 High Arctic Energy Services Inc. Suite 2350, 330–5th Avenue SW Calgary, Alberta, Canada T2P 0L4 website: haes.ca Email: info@haes.ca High Arctic Announces D Bordessa Resignation_Final

[fusion_builder_container type=”flex” hundred_percent=”no” equal_height_columns=”no” menu_anchor=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” background_color=”” background_image=”” background_position=”center center” background_repeat=”no-repeat” fade=”no” background_parallax=”none” parallax_speed=”0.3″ video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”16:9″ video_loop=”yes” video_mute=”yes” overlay_color=”” video_preview_image=”” border_color=”” border_style=”solid” padding_top=”” padding_bottom=”” padding_left=”” padding_right=””][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ background_position=”left top” background_color=”” border_color=”” border_style=”solid” border_position=”all” spacing=”yes” background_image=”” background_repeat=”no-repeat” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”0px” margin_bottom=”0px” class=”” id=”” animation_type=”” animation_speed=”0.3″ animation_direction=”left” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” center_content=”no” last=”true” min_height=”” hover_type=”none” link=”” border_sizes_top=”” border_sizes_bottom=”” border_sizes_left=”” border_sizes_right=”” first=”true”][fusion_text] CALGARY, Canada – August 3, 2023, High Arctic Energy Services Inc. (TSX: HWO) (the “Corporation” or “High Arctic”) released its’ second quarter financial and operating results. The unaudited interim consolidated financial statements, and management discussion & analysis (“MD&A”), for the quarter ended June 30, 2023 will be available on SEDAR at www.sedarplus.ca, and on High Arctic’s website at haes.ca. All amounts are denominated in Canadian dollars (“CAD”), unless otherwise indicated. Mike Maguire, Chief Executive Officer commented: “In PNG we have had our first full quarter of drilling activity with Rig 103. In Canada we have closed the divestment of the nitrogen pumping business for a modest gain and have aligned our G&A costs towards our reduced business footprint. We are working with our advisers to complete the work to reorganize the Corporation and deliver the tax efficient return of cash to shareholders. The proposed spin-off of the Papua New Guinean business addresses the inefficiencies in managing two small businesses with few synergies. The remaining publicly listed company with Canadian assets and tax pools creates a potentially attractive vehicle for future growth. I look forward to presenting details of the Reorganization to shareholders in the coming months.” Highlights The following highlights the Corporations results for Q2-2023: • Achieved full drilling utilization of PNG Rig 103 during the Quarter, pursuant to a 3-year contract that was renewed in August 2022. • Generated EBITDA from continuing operations of $3.8 million on revenues of $17.2 million, funds flow from continuing operations of $3.9 million and incurred capital expenditures of $0.7 million. • Improved liquidity with a working capital balance of $61.8 million, which includes a cash balance of $45.4 million, and long-term debt of $4.0 million, and • Announced the sale of the Corporation’s Canadian Nitrogen transportation, hauling and pumping services business for cash consideration of $1.35 million. 2023 Strategic Objectives High Arctic’s 2023 Strategic Objectives build on the platform we created in 2022, and include: • Safety excellence and quality service delivery, • Return idled assets in PNG to service, • Scaling our Canadian business, • Opportunities for growth and corporate transactions that enhance shareholder value, and • Examination of the Corporation’s optimal capital and overhead structure. 230803 – PR_ Q2 FS and MDA [/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]

Calgary, Alberta, July 31, 2023: High Arctic Energy Services Inc. (TSX: HWO) “High Arctic” or the “Corporation” intends to release its 2023 second quarter results on Thursday, August 3, 2023 after markets close and has scheduled a conference call to begin at 10:00 am MT (12:00 pm ET) on Friday, August 4, 2023. The conference call dial in numbers are 1-800-806-5484 or 416-340-2217 and the participant passcode is 8364241#. Participants joining from outside North America can find International dial-in numbers at: https://www.confsolutions.ca/ILT?oss=7P1R8009525114. An audio recording of the conference call will be available within 24 hours on High Arctic’s website and will remain available until September 30, 2023. The Corporation’s Second Quarter Financial Statements and Management’s Discussion & Analysis will be posted to High Arctic’s website and SEDAR after the results are released. About High Arctic High Arctic is an energy services provider. High Arctic is a market leader in Papua New Guinea providing drilling and specialized well completion services and supplies rental equipment including rig matting, camps, material handling and drilling support equipment. In western Canada High Arctic provides pressure control equipment on a rental basis to exploration and production companies. For further information, please contact: Mike Maguire Chief Executive Officer 1.587.318.3826 1.800.668.7143 High Arctic Energy Services Inc. Suite 2350, 330–5th Avenue SW Calgary, Alberta, Canada T2P 0L4 website: haes.ca Email: info@haes.ca 230731 – Q2 2023 Results Release ANNOUNCEMENT w conf call