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The September/October 2026 issue of Oilfield Technology explores how operators and service companies are responding to a more demanding upstream environment through technology, optimisation and smarter decision-making. Highlights include McKinsey & Company on the growing exploration discovery gap, Halliburton on unlocking bypassed reserves through multilateral technology, and MR Group on continuous BOP assurance, alongside features examining autonomous FPSOs, produced water treatment, H2S scavenging, advanced sealing solutions and the growing role of AI in optimising well and asset performance.

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Home/News/Upstream drilling news

Upstream drilling news

Browse the latest upstream drilling news news and articles.

WoodMac comment: Chevron confirms Tengizchevroil costs overrun
4 Nov 20192 min read

WoodMac comment: Chevron confirms Tengizchevroil costs overrun

Ashley Sherman, principal analyst, Caspian upstream reflects on Chevron's confirmed cost increases and delays.

Optimising full-cycle production
31 Oct 20199 min read

Optimising full-cycle production

Eric Lookofsky and Matt Miller, Newpark Drilling Fluids, USA, discuss how key facility investments have aided the development of drilling, completion and stimulation products.

Maersk Drilling to drill subsea development well at Columbus Development
31 Oct 20191 min read

Maersk Drilling to drill subsea development well at Columbus Development

The contract is with Serica Energy and is expected to commence in 4Q20.

Churchill records successful drill-string severs in Middle East
30 Oct 20192 min read

Churchill records successful drill-string severs in Middle East

The company's HyPR™ stuck pipe solution was used to cut drill-strings at four sites in the Middle East.

GlobalData: Norway has highest number of oil and gas discoveries in 3Q19
28 Oct 20191 min read

GlobalData: Norway has highest number of oil and gas discoveries in 3Q19

Of the 38 global oil and gas discoveries made in 3Q19, six were located in Norway.

Tambak-2 well closed
28 Oct 20193 min read

Tambak-2 well closed

During operations to recover a failed packer, the well started flowing natural gas to surface. For safety reasons, the well was immediately shut in.

Cairn completes first well in offshore Mexico drilling campaign
28 Oct 20192 min read

Cairn completes first well in offshore Mexico drilling campaign

The exploration target of the Alom-1 well on Block 9 was to prove hydrocarbons in stacked Pleistocene targets. The objectives were found to be dry and the well will now be permanently plugged and abandoned.

Gas discovery made offshore Mauritania
28 Oct 20192 min read

Gas discovery made offshore Mauritania

Located approximately 125 km offshore Mauritania, the Orca-1 well exceeded pre-drill expectations encountering 36 m of net gas pay.

OMV Norge AS completing drilling of appraisal well near Morvin field
25 Oct 20192 min read

OMV Norge AS completing drilling of appraisal well near Morvin field

Prior to the drilling of well 6506/11-11 S, the operator’s resource estimate for the discovery was between 3 and 21 million m3 of recoverable oil equivalents.

Petro Matad releases results of testing at Heron-1 well
24 Oct 20194 min read

Petro Matad releases results of testing at Heron-1 well

DST2 was performed over a 12 m interval from 2834 m in the upper portion of the Lower Tsagaantsav Formation. The zone flowed oil and some associated gas to surface without the need for any artificial lift.

Caterpillar reports 3Q19 results
24 Oct 20192 min read

Caterpillar reports 3Q19 results

The company has announced 3Q19 sales and revenues of US$12.8 billion, a 6% decrease compared with US$13.5 billion in 3Q18. The decrease has been attributed to a US$1.2 billion movement in dealers’ inventories.

Range Resources sells four onshore drilling rigs to Wilson Energy Services
24 Oct 20192 min read

Range Resources sells four onshore drilling rigs to Wilson Energy Services

Wilson Energy Services will pay Range a total cash consideration of US$3.6 million upon completion of the transaction.

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