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Horizon Oil Ltd

ASX:HZN
A$0.215Close 7 Oct 2026 · delayed

Past year: ▲ 5%(19.5c – 28.0c AUD)

Market cap
A$340m
Shares on issue
1.58bn
In-ground value
A$202m
Risked multiple
0.24×
Story beats
214 since 2006
Last event
27 Aug 2026

Announcements, explained

Each one in plain English, with the numbers worked through for a shareholder.

19 July 2006drilling progress report● Neutral

Partner Petsec (25%) repeats ROC's update on the second Wei-6-12S-1 sidetrack, at 2,217m and drilling towards 2,849m, with results next week. Re-release of operator news.

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12 July 2006drilling progress report● Neutral

Partner FAR (5%) repeats ROC's first-sidetrack result and second-sidetrack plan at Wei-6-12S-1. The rest covers FAR's Canadian and US wells, unrelated to Horizon. Re-release of known information.

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12 July 2006drilling progress report● Neutral

Partner Petsec (25%) repeats ROC's update: the first Wei-6-12S-1 sidetrack is done with cores recovered, and a second step-out sidetrack is due to start. Re-release of operator news.

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12 July 2006drilling progress report● Neutral

ROC says the first sidetrack at Wei-6-12S-1, about 50m from the discovery, reached 2,530m and was plugged after recovering five cores of similar quality. A second, step-out sidetrack with an exploration element starts this week, finishing in August.

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12 July 2006drilling progress report● Neutral

Horizon relays ROC's news that the first Wei 6-12 South sidetrack (Horizon 30%) cored reservoir similar to the discovery well. A second step-out sidetrack starts this week, with weekly updates. No new Horizon information.

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13 June 2006well test result▲ GoodMajor

ROC reports production tests of three zones at Wei-6-12S-1 all flowed oil, up to a combined 5,750 barrels a day (1,725, 2,575, 1,450). No water was produced in the tests. This supports the discovery (Horizon 30%); a first sidetrack starts this week.

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13 June 2006well test result▲ GoodMajor

Horizon relays ROC's results: three zones at Wei 6-12 South (Horizon 30%) all flowed oil, up to a combined 5,750 barrels a day. Sidetrack coring starts this week, and a second sidetrack is expected afterwards. Commercial viability is not yet decided.

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13 June 2006well test result▲ Good

Partner FAR (5%) repeats ROC's Wei-6-12S-1 test results of up to 5,750 barrels a day combined, with a sidetrack to follow. Re-release of known information; the rest covers FAR's Canadian Kakwa well, unrelated to Horizon.

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13 June 2006well test result▲ Good

Partner Petsec (25%) repeats ROC's production test results at Wei-6-12S-1: oil from all three zones, up to 5,750 barrels a day combined, with a coring sidetrack next. Re-release of operator news, not Horizon's own.

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24 May 2006drilling scheduled● Neutral

Partner FAR (5%) repeats ROC's plan for production testing at Wei-6-12S-1. The rest covers FAR's Canadian Kakwa well, unrelated to Horizon. Re-release of known information.

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24 May 2006drilling scheduled● Neutral

ROC says a three-week production testing programme is about to start at Wei-6-12S-1, testing at least three zones; the well was deepened to 2,650 metres. One or two sidetrack wells may follow; next update expected mid-June 2006. Horizon holds 30%.

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24 May 2006drilling scheduled● Neutral

Horizon relays ROC's plan for a three-week production test of the Wei 6-12 South discovery (Horizon 30%), covering at least three zones. Sidetrack wells may follow; next result expected mid-June 2006.

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24 May 2006drilling scheduled● Neutral

Partner Petsec (25%) repeats ROC's 24 May plan for a three-week, at least three-zone production test at Wei-6-12S-1 (TD 2,650m), with one or two sidetracks to follow. Re-release of known information; next ROC update mid-June 2006.

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17 May 2006drilling result▲ Good

Partner FAR (5%) repeats ROC's interim results for Wei-6-12S-1: 95 metres of net hydrocarbon pay, with appraisal to follow. Re-release of known information from a partner.

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17 May 2006drilling result▲ Good

Partner Petsec (25%) repeats ROC's interim results: 95 metres of net hydrocarbon pay including 80.5 metres of net oil at Wei-6-12S-1, with appraisal planned. Re-release of operator news, not Horizon's own.

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17 May 2006drilling result▲ GoodMajor

ROC's interim analysis of Wei-6-12S-1 shows three oil columns with 95 metres of net hydrocarbon pay, including 80.5 metres of net oil, which is less than the earlier ~100 metres estimate. Two columns appear to extend beyond mapped closure. Appraisal with production tests and a sidetrack is planned.

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10 May 2006drilling result▲ Good

Horizon relays ROC's news that Wei 6-12 South (30%) is a potentially significant oil discovery, with about 100 metres of net oil pay. Immediate appraisal is being considered; field size is not yet known.

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10 May 2006drilling result▲ GoodMajor

ROC says initial logs show Wei-6-12S-1 is a potentially significant oil discovery, with about 100 metres of net oil pay over a 500 metre interval, above pre-drill expectations. Confirms the earlier shows; the partners are considering immediate appraisal. Horizon holds 30%.

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10 May 2006drilling result▲ Good

Partner Petsec (25%) repeats ROC's report of a potentially significant oil discovery at Wei 6-12 South, with about 100 metres of net oil pay. Re-release of known information, not Horizon's own news.

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10 May 2006drilling result▲ Good

Partner FAR (5%) repeats ROC's report of the Wei-6-12S-1 oil discovery with about 100 metres of net oil pay. Re-release of known information; the rest covers FAR's Canadian Kakwa well, unrelated to Horizon.

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8 May 2006drilling progress report● Neutral

Horizon passes on ROC's update: Wei 6-12 South (30%) reached 2,535 metres with oil and wet gas shows; logging is next and commercial significance is unknown. Repeats the partner release, no new Horizon information.

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8 May 2006drilling progress report● Neutral

ROC reports Wei-6-12S-1 reached total depth of 2,535 metres, with oil and wet gas shows in several sandstones across a 528 metre interval. Commercial significance is unknown until logs are analysed. Horizon holds 30%.

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5 May 2006drilling result▲ GoodMajor

ROC reports Wei-6-12S-1 hit a sand with strong oil shows at 1,956 metres and another with very high gas readings. The operator says it is likely to be classed a discovery, but whether it is large enough is unknown.

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5 May 2006drilling result▲ Good

Horizon passes on ROC's update: Wei 6-12 South (Horizon 30%) has strong oil shows at 1,956 metres and is likely a discovery. Commercial significance is unknown until total depth and logging.

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28 Apr 2006quarterly activities report▲ Good

March 2006 quarter: A$13.5 million raised for Maari, whose development is progressing. The Wei 6-12 South well is drilling and AMI-1 at Bayou Choctaw was completed as a producer. Lei Dong block evaluation is nearly finished, with a farmout package planned.

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27 Apr 2006flow test result▲ GoodMajor

AMI-1 tested at 3.1 million cubic feet a day of rich gas and 60 barrels of oil a day, and will be online in about 2 weeks. The rig was released for poor performance; drilling is hoped to restart by mid-July.

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26 Apr 2006drilling spud● Neutral

ROC reports Wei-6-12-S-1 started drilling on 25 April, expected to take about 21 days to 2,530 metres. Horizon holds 30%. The release also reports a dry hole in a separate ROC well.

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20 Apr 2006drilling progress report● Neutral

AMI-1 drilling stopped for safety reasons due to pressure problems and the well is being completed on the Cib Haz formation with 219 feet gross / 74 feet net pay. Deeper targets were not reached; two follow-up wells may be drilled.

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