Gran Tierra Energy Inc.（“ran Tierra”或“公司”）（纽约证券交易所美国股票代码：GTE）（多伦多证券交易所代码：GTE）（伦敦证券交易所代码：GTE）今天宣布了一项运营更新。除非另有说明，所有金额均以美元计算，产量均以特许权使用费前的平均工作利息 (“I”) 为基础。每桶 (“bl”) 和每天 bbl 石油 (“OPD”) 金额基于扣除特许权使用费前的 WI 销售额。

致股东的信息

Gran Tierra 总裁兼首席执行官 Gary Guidry 评论道：“ran Tierra 很高兴宣布 Arawana-J1 井（100% WI，运营商）的测试结果，这标志着我们在厄瓜多尔。这些结果不仅突显了 Arawana 油田区域的潜力，而且继续证明了我们在哥伦比亚核心南部（Rose 发现）和厄瓜多尔北部（Bocachico 和 Charapa Norte 发现）的核心勘探计划的成功。我们非常兴奋的是，在闭合程度、厚度、岩石和流体特性方面与 Arawana 油田最接近的地区是我们位于哥伦比亚南普图马约盆地的 Cohembi 油田，我们正在运营该油田，该油田位于以北仅 20 公里处。正如我们截至 2023 年 12 月 31 日的最新年度公司储量披露所披露的，Cohembi 的最终总探明加上可能（“2P”）原始可采储量由公司独立合格的 McDaniel & Associates Consultants Ltd. 估计。储量评估值为 8200 万桶。在厄瓜多尔和哥伦比亚开展业务的一个主要优势是能够通过新发现快速将生产货币化。由于附近的基础设施和监管部门的批准已经到位，我们处于有利地位，可以快速评估和开发 Arawana 油田。我们将利用 Gran Tierra 强劲的现金流、稳健的资产负债表以及这一发现的新产品来为开发提供资金。

此外，对于 Arawana-J1 的测试进度，我们很高兴提供钻井作业的最新信息。钻探 Arawana-J1 的钻机已移至 Bocachico Norte-J1 井窖，Bocachico Norte-J1 井（100% WI，运营商）已于 5 月 24 日开钻，标志着我们 2024 年勘探中第二口探井的开始计划。截至 5 月 27 日，该井正在钻探约 6,670 英尺，预计总深度约 10,800 英尺。在 Bocachico Norte-J1 井钻探和完井后，钻机将移至 Charapa 区块（100% WI，运营商），开始钻探三口勘探井。此阶段完成后，钻机将返回 Chanangue 区块，从 K 平台钻探另外两口探井，Zabaleta-K1 和 Zabaleta Oeste-K1（100% WI，运营商）。我们对 Zabaleta 井感到特别兴奋，因为它们位于 Arawana-J1 的上倾处和构造高处，有望在 Basal Tena、U-Sand、T-Sand 和 Hollin 的垂直叠置层段中获得重大发现的进一步潜力高渗透砂岩。 Gran Tierra 目前正在与厄瓜多尔能源和矿业部密切合作，以快速推进 Gran Tierra 厄瓜多尔所有区块的勘探和开发。

Arawana-J1 发现井是我们 2024 年勘探计划中风险最高的井，它为 Gran Tierra 实现强劲的储量结果奠定了基础，并在厄瓜多尔开辟了另一个开发视野，我们预计将完全由内部产生的现金流提供资金。这一成功还验证了我们的精细地质模型，该模型已被证明是有效的，最后四口探井发现了四处石油。我们相信，我们未来的开发和勘探计划将继续推动我们在该地区的增长和成功。”

Arawana

-J1 石油发现： - Gran Tierra 已在 Basal Tena 油区进行生产套管、固井和射孔，并已开始生产测试。

- Basal Tena 水库被穿孔超过 23.5 英尺。喷射泵运行后，该井已在 48 小时内稳定生产，产量为 1,174 桶/日（“OPD”），API 重力油为 20 度，含水率低于 1%，气油比(“OR”) 每桶储罐容量为 258 标准立方英尺 (“cf/stb”)。

- 该井继续进行清理，在过去 12 小时内，该井稳定生产了 1,358 BOPD 的 20 度 API 重力油，含水率低于 1%，气油比为 239 scf/stb。

与 Arawana 油田类似的是位于以北 20 公里的 Cohembi 油田，Gran Tierra 正在该油田扩大注水规模，以优化该油田的采收率。 Cohembi 产自 N 砂岩，其地质相当于 Arawana 油田地区的 Basal Tena。闭合性、厚度、岩石和流体性质与 Arawana 油田区域非常相似。 Arawana 油田区域的一个显着差异是气油比较高，石油粘度较低，这非常有利于通过水驱提高石油采收率，同时提供天然气用于发电。

TBD — 待定

勘探更新：

- Bocachico Norte-J1（100% WI，运营商）：

- Arawana-J1 井钻探完成后，钻机移至同一井场并开始钻探 Bocachico Norte- J1探井。 Bocachico Norte-J1 勘探井是成功的 Bocachico-J1（100% WI，运营商）勘探井的后续项目，旨在测试更深的 T 砂岩和基底 Tena 勘探井的前景。

- Bocachico-J1 井在 Basal Tena（N 砂地质相当于 Cohembi）的初始 90 天产量超过 1,100 BOPD，继续以大约 850 BOPD 的速度生产 20 度 API 石油，并且产量低于含水1%。

- Charapa 地震计划：

- 20 公里 Charapa 区块二维地震承诺已成功完成，目前正在处理数据。 238平方公里的3D节目已完成13%，将于6月中旬完成拍摄。处理后的 3D 数据集预计将于 2024 年第三季度交付，并将用于在老式 2D 地震线上确定的高级多个引人注目的结构线索，预计将于 2025 年进行钻探。

- 2024 年厄瓜多尔勘探的剩余部分程序：

- Bocachico Norte-J1勘探井完工后，钻机将移至Charapa区块钻三口勘探井，最后返回Chanangue区块瞄准两口Zabaleta勘探井，以测试Arawana-J1的Basal Tena上倾角，并在构造高处测试其他更深的 U 型和 T 型砂岩单元。

公司介绍：

Gran Tierra 的公司介绍已更新，可在 www.grantierra.com 上获取。

Gran Tierra Energy Inc. (“Gran Tierra” or the “Company”) (NYSE American:GTE) (TSX:GTE) (LSE:GTE) today announced an operational update. All dollar amounts are in United States dollars, and production amounts are on an average working interest before royalties (“WI”) basis unless otherwise indicated. Per barrel (“bbl”) and bbl of oil per day (“BOPD”) amounts are based on WI sales before royalties.

Message to Shareholders

Gary Guidry, President and Chief Executive Officer of Gran Tierra, commented: “Gran Tierra is thrilled to announce the test results from the Arawana-J1 well (100% WI, Operator), marking a significant milestone for our operations in Ecuador. These results not only highlight the potential of the Arawana field area but continues to demonstrate the success of our exploration program in our core southern Colombia (Rose discovery) and northern Ecuador (Bocachico and Charapa Norte discoveries). We are very excited that the closest analogue to the Arawana field area, in terms of closure, thickness, rock and fluid properties, is our Cohembi field located in Colombia's South Putumayo Basin, which we operate and is located just 20 km to the north. As disclosed with our latest annual Company reserves disclosure as of December 31, 2023, the ultimate gross Proved plus Probable (“2P”) original recoverable reserves from Cohembi as estimated by McDaniel & Associates Consultants Ltd., the Company’s independent qualified reserves evaluator is 82 million bbls. A major advantage of operating in both Ecuador and Colombia is the ability to quickly monetize production from new discoveries. With nearby infrastructure and regulatory approvals already in place, we are well-positioned to quickly appraise and develop the Arawana field. We will utilize Gran Tierra's strong cash flow, solid balance sheet, and new production from this discovery to fund the development.

In addition, to our progress testing Arawana-J1, we are pleased to provide an update on our drilling operations. The rig that drilled Arawana-J1 was moved to the Bocachico Norte-J1 well cellar, where the Bocachico Norte-J1 well (100% WI, Operator) was spud on May 24th, marking the start of the second exploration well in our 2024 exploration plan. As of May 27th, the well is drilling ahead at approximately 6,670 feet to an expected total depth of approximately 10,800 feet. Following the drilling and completion of the Bocachico Norte-J1 well, the rig will move to the Charapa Block (100% WI, Operator) to commence drilling three exploration wells. Once this phase is complete, the rig will return to the Chanangue block to drill two additional exploration wells from the K pad, Zabaleta-K1 and Zabaleta Oeste-K1 (100% WI, Operator). We are particularly excited about the Zabaleta wells, as they are positioned up dip from Arawana-J1 and on the structural high, promising further potential for significant discoveries in the vertically stacked intervals of the Basal Tena, U-Sand, T-Sand and Hollin high permeability sandstones. Gran Tierra is currently working closely with the Ministry of Energy and Mines of Ecuador to fast track the exploration and development of all of Gran Tierra’s Ecuadorian blocks.

The Arawana-J1 discovery, which was the highest-risk well in our 2024 exploration program, has set the stage for Gran Tierra to deliver strong reserve results and has opened another development horizon in Ecuador that we expect to fully fund from internally generated cash flow. This success also validates our refined geological model, which has proven effective with the last four exploration wells yielding four oil discoveries. We are confident that our future development and exploration programs will continue to drive our growth and success in the region.”

Arawana-J1 Oil Discovery:

- Gran Tierra has run production casing, cemented and perforated the Basal Tena oil zone and has begun production testing.

- The Basal Tena was perforated over 23.5 ft of reservoir. A jet pump was run and the well has produced at stabilized rates over 48 hours at 1,174 barrels oil per day (“bopd”), 20-degree API gravity oil, less than 1% water cut, and a gas-oil ratio (“GOR”) of 258 standard cubic feet per stock tank barrel (“scf/stb”).

- The well continues to clean-up and over the past 12 hours the well has produced at stabilized rates of 1,358 BOPD of 20-degree API gravity oil, less than 1% water cut, and a GOR of 239 scf/stb.

The analogue for the Arawana field area is the Cohembi field 20 km north, where Gran Tierra is in the process of expanding the waterflood to optimize recovery from the field. Cohembi produces from the N-sands, the geologic equivalent of the Basal Tena at the Arawana field area. The closure, thickness, rock and fluid properties are very similar to that of the Arawana field area. One notable difference of the Arawana field area is a higher gas-oil ratio providing a lower oil viscosity which is excellent for enhanced oil recovery by waterflooding while providing natural gas for power generation.

TBD – To be determined

Exploration Update:

- Bocachico Norte-J1 (100% WI, Operator):

- Upon completion of drilling the Arawana-J1 well, the drilling rig was moved on the same well pad and commenced drilling the Bocachico Norte-J1 exploration well. The Bocachico Norte-J1 exploration well is a follow-up to the successful Bocachico-J1 (100% WI, Operator) exploration well to test both the deeper T-Sandstone and Basal Tena prospectivity.

- The Bocachico-J1 well had initial 90-day production rates in the Basal Tena (N-Sand geologic equivalent to Cohembi) of greater than 1,100 BOPD, continues to produce at approximately 850 BOPD, 20-degree API oil, and has less than 1% water cut.

- Charapa Seismic Program:

- The 20km Charapa-block 2D seismic commitment was successfully completed and the data is now being processed. The 238km2 3D program is 13% complete and will be finished shooting in mid-June. The processed 3D dataset is expected to be delivered by the third quarter of 2024 and will be used to high-grade multiple compelling structural leads identified on vintage 2D seismic lines, which are expected to be drilled in 2025.

- Remainder of the 2024 Ecuador Exploration Program:

- Upon completion of the Bocachico Norte-J1 exploration well, the rig will be moved to the Charapa Block to drill three exploration wells and finally back to the Chanangue Block to target two Zabaleta exploration wells to test the Basal Tena up dip from Arawana-J1, and test additional deeper U- and T-Sandstone units on the structural high.

Corporate Presentation:

Gran Tierra’s Corporate Presentation has been updated and is available at www.grantierra.com.