Pulsar Helium Inc. (AIM: PLSR, TSXV: PLSR, OTCQB: PSRHF) has commenced the drilling of Jetstream #5 at its flagship Topaz helium project in the US state of Minnesota. Following completion of drilling at Jetstream #4, the drill rig and equipment were moved to the Jetstream #5 drill pad. According to the Company, rigging-up operations commenced on November 27, 2025, and the spud date for Jetstream #5 was November 28, 2025.
Pulsar is progressing its multi-stage drilling campaign, which it hopes will help delineate the extent and properties of the helium-bearing reservoir.
Pulsar Helium: Jetstream #5 with Target Depth of 1,524 Meters
Jetstream #5 is located approximately three kilometers northeast of the first well, Jetstream #1. The planned target depth for Jetstream #5 is approximately 1,524 meters.
Jetstream #5 follows a series of exploration and appraisal wells that the Company has drilled in close proximity on the Topaz project. According to Pulsar Helium, the goal is to gain a better understanding of the geometry, pressure regime, and gas composition of the reservoir, and inform future exploration decisions.
Overview of Previous Jetstream Wells by Pulsar Helium
In its latest announcement, Pulsar Helium summarizes key parameters of previous Jetstream drilling at Topaz:
Jetstream #1 – Helium-3 discovery and production test
The Jetstream #1 well reached a total depth (TD) of 1,555 meters in January 2025 and, according to the company, penetrated the entire interpreted helium-bearing reservoir. In a production test with a wellhead compressor in August 2025, Pulsar Helium recorded a peak gas flow of approximately 1.3 million cubic feet per day. The helium content (helium-4) in the produced gas averaged 8.1%, with a high CO₂ content of 72.9%.
Jetstream #1 also received special attention due to the detection of helium-3: According to Pulsar, concentrations of up to 14.5 parts per billion (ppb) were measured. The well produced without formation water and the wellhead pressure was reported to be around 122 psi.
Jetstream #2 – Higher pressure and helium content
Jetstream #2 was drilled to a depth of 1,718 meters in early February 2025. In the first gas samples, the company recorded helium content of up to 6.5%, with a reported average helium-4 concentration of 5.6% and a CO₂ content of 79.8%.
According to Pulsar Helium, the pressure regime was also significant: the initial shut-in wellhead pressure was around 151 psi, which is noticeably higher than the values for Jetstream #1. In a short test, a natural flow of 21,000 cubic feet per day on average was measured at a pressure drop of 60 psi.
Jetstream #3 – High reservoir pressure, tests pending
The Jetstream #3 well reached a final depth of 1,069 meters on November 7, 2025. According to the Company, several zones with recognizable over pressurized gas were encountered during drilling. The calculated bottom hole pressure was approximately 960 psi, which Pulsar Helium considers an indication of a strongly naturally pressurized reservoir.
Gas composition data for Jetstream #3 is not yet available, testing and sampling will take place on both Jetstream #3 and #4 in the coming weeks. Natural flow rate data is also pending.
Jetstream #4 – Helium-bearing zone completely penetrated
Jetstream #4 was drilled to a depth of 915 meters on November 25, 2025. According to the Company, the well penetrated the entire interpreted helium-bearing zone. During drilling, a gas zone with an estimated pressure of approximately 887 psi was encountered at 578 meters. Further information, including gas composition and flow-rates to be announced by Pulsar in the coming weeks.
Pulsar shareholders can look forward to a steady stream of news, as the current drilling program is designed for up to ten wells.
