UK companies/SIC 09100/Shareholders/Page 23

Shareholders of UK companies in SIC 09100Page 23 of 30

Support activities for petroleum and natural gas extraction·3,467 companies carry this code·30 shown on this page

SIC 09100 — Support activities for petroleum and natural gas extraction is the Companies House industry code carried by 3,467 UK companies. This page sets out the shareholder register of 30 of them: 30 distinct shareholders holding 35 share-class positions. Every figure comes from the statement of capital and list of members in that company’s most recent CS01 confirmation statement, filed between 2021-05-20 and 2026-03-30. Each company and each shareholder carries a Sophymarine OpenRegistry ID.

Industry code
SIC 09100

On the UK register
3,467

With a shareholder register
883

Companies on this page
30

Distinct shareholders
30

Shareholders that are UK companies
15

EGDON RESOURCES U.K. LIMITED

openregistry-gb-03424561·confirmation statement 2024-08-26·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
EGDON RESOURCES LIMITEDopenregistry-gb-06409716	ORDINARY	67,801,840

CONSERVE RENTALS & SERVICES LIMITED

openregistry-gb-03528948·confirmation statement 2025-03-17·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
CENTURION UK RENTALS & SERVICES HOLDINGS LIMITEDopenregistry-gb-SC657607	ORDINARY	100,001

HOH OILFIELD SERVICES LIMITED

openregistry-gb-03552352·confirmation statement 2025-04-24·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
MICHAEL COEopenregistry-gb-04661921	ORDINARY	100

DIALES CONSULT LIMITED

openregistry-gb-03881875·confirmation statement 2025-11-19·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
DIALES GROUP PLCopenregistry-gb-03475146	ORDINARY	1

E.V. OFFSHORE LIMITED

openregistry-gb-03937007·confirmation statement 2026-01-31·1 shareholder·1 share class

Shareholder	Share class	Shares held
EV FINCO LIMITEDopenregistry-gb-08925721	ORDINARY	3,219
EV FINCO LIMITEDopenregistry-gb-08925721	ORDINARY	0
EV FINCO LIMITEDopenregistry-gb-08925721	ORDINARY	0
EV FINCO LIMITEDopenregistry-gb-08925721	ORDINARY	0

FONTANA SOLUTIONS LIMITED

openregistry-gb-04029228·confirmation statement 2023-07-07·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
MR PAUL ANTHONY BLAKEopenregistry-h-mr-paul-anthony-blake-9c7fa4	ORDINARY £1	2
MR PAUL ANTHONY BLAKEopenregistry-h-mr-paul-anthony-blake-9c7fa4	ORDINARY £1	0

UKOG (GB) LIMITED

openregistry-gb-04050227·confirmation statement 2021-08-09·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
UK OIL & GAS PLCopenregistry-gb-05299925	ORDINARY	1

AVITAR SERVICES LIMITED

openregistry-gb-04228453·confirmation statement 2023-06-04·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
BRADLEY FRANCIS DADENopenregistry-h-bradley-francis-daden-2e9e95	ORDINARY £1 A	100	100.00%

JKX GEORGIA LTD

openregistry-gb-04448313·confirmation statement 2022-05-14·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
JKX OIL & GAS LIMITEDopenregistry-gb-03050645	ORDINARY	1,000

ENSCO SERVICES LIMITED

openregistry-gb-04605864·confirmation statement 2025-12-02·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
ENSCO OFFSHORE U.K. LIMITEDopenregistry-gb-02868165	£1 0RD.	1,000

BH 03 LTD

openregistry-gb-04703788·confirmation statement 2023-03-19·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
BAKER HUGHES HOLDINGS LLCopenregistry-h-baker-hughes-holdings-llc-d21bbc	ORDINARY	1

BOSKALIS SUBSEA SERVICES LIMITED

openregistry-gb-04851172·confirmation statement 2022-05-08·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
BOSKALIS SUBSEA NORTH STAR LIMITEDopenregistry-gb-07978736	ORDINARY	81,999,850	100.00%
BOSKALIS SUBSEA NORTH STAR LIMITEDopenregistry-gb-07978736	ORDINARY	300	0.00%

FIRST UNIVERSAL LTD

openregistry-gb-04943394·confirmation statement 2025-08-15·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
BIN SUopenregistry-h-bin-su-07c513	ORDINARY	1	100.00%

ENERGY ALLOYS UK LIMITED

openregistry-gb-05044016·confirmation statement 2025-02-13·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
ENERGY ALLOYS INTERNATIONAL HOLDINGS BVopenregistry-h-energy-alloys-international-holdings-bv-b5674e	ORDINARY	2,679,100	100.00%

R.L.K. SERVICES LIMITED

openregistry-gb-05408181·confirmation statement 2026-03-30·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
ROBERT LESLIE KYLEopenregistry-h-robert-leslie-kyle-7f15e4	ORDINARY	1	100.00%

XTO UK, LTD

openregistry-gb-05458042·confirmation statement 2021-05-20·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
XH, LLCopenregistry-h-xh-llc-9b95f6	ORDINARY	2

ENERGY (PHT GP) LIMITED

openregistry-gb-05490404·confirmation statement 2026-03-08·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
PHT ENERGY (THAILAND) PTE. LTD.openregistry-h-pht-energy-thailand-pte-ltd-bf90b7	ORDINARY	920,910

ATLANTIC INTERNATIONAL OPERATION LIMITED

openregistry-gb-05539706·confirmation statement 2026-03-02·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
MUSTAFA OZKANopenregistry-h-mustafa-ozkan-763b3d	ORDINARY SHARES	1,000

PETRENOL LIMITED

openregistry-gb-05556522·confirmation statement 2025-03-31·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
JOFFIE URQUART IRVINEopenregistry-h-joffie-urquart-irvine-45f5a7	ORDINARY	100

TGS GEOPHYSICAL COMPANY (UK) LIMITED

openregistry-gb-05731700·confirmation statement 2021-11-15·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
TGS ASAopenregistry-h-tgs-asa-63c05d	ORDINARY 1P SHARE	16,603,534

TETRA ENERGY UK ONSHORE LTD

openregistry-gb-06030678·confirmation statement 2023-09-22·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
TETRA ENERGY GAMMA LIMITEDopenregistry-gb-09655155	ORDINARY	7,500,000

INFRASTRATA UK LIMITED

openregistry-gb-06030687·confirmation statement 2022-04-26·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
HARLAND & WOLFF GROUP HOLDINGS PLCopenregistry-gb-06409712	ORDINARY	15,778,196

SWELLFIX UK LIMITED

openregistry-gb-06212769·confirmation statement 2023-04-07·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
TENDEKA LIMITEDopenregistry-gb-SC746398	A ORDINARY	10

JERSEY PETROLEUM LTD

openregistry-gb-06490608·confirmation statement 2026-01-13·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
JERSEY NORTH SEA HOLDINGS LIMITEDopenregistry-gb-06451896	ORDINARY A	77,050

EPIDEME SYSTEMS LIMITED

openregistry-gb-06497890·confirmation statement 2022-02-22·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
MARK ANDREW PARFITTopenregistry-h-mark-andrew-parfitt-5cade9	ORDINARY	1,000	100.00%

OEG OFFSHORE GROUP LIMITED

openregistry-gb-06498626·confirmation statement 2024-03-08·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
OEG GLOBAL LIMITEDopenregistry-gb-08132445	ORDINARY	24,542,002

ADVANCED INNERGY CONTRACTING LTD

openregistry-gb-06700049·confirmation statement 2022-09-16·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
ADVANCED INNERGY LTDopenregistry-gb-06416439	ORDINARY	1

CORPORATE INTEGRITY LIMITED

openregistry-gb-06926300·confirmation statement 2023-06-06·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
MATRIX+ CONSULTING UK LIMITEDopenregistry-h-matrix-consulting-uk-limited-4b3ac9	ORDINARY	1,000	100.00%

DOODLE ENGINEERING LIMITED

openregistry-gb-07080500·confirmation statement 2025-08-24·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
MICHAEL FALLBROWNopenregistry-h-michael-fallbrown-24a6bc	ORDINARY	1

HERITAGE OIL (UK) LIMITED

openregistry-gb-07155108·confirmation statement 2023-02-11·1 shareholder·1 share class

Shareholder	Share class	Shares held	% of class
HERITAGE OIL HOLDINGS LIMITEDopenregistry-h-heritage-oil-holdings-limited-0504c3	ORDINARY	275,991,367

Each shareholder carries a Sophymarine OpenRegistry ID. Where the shareholder resolves unambiguously to a UK registered company the ID is openregistry-gb- plus its Companies House number, so the same company carries the same ID wherever it appears. Every other shareholder, including individuals, is given openregistry-h- plus the name as filed and a short hash of it.

A name-derived ID keys the name as recorded on the confirmation statement, not a verified individual. Two different people filed under the same name share one ID; one person filed inconsistently across companies receives more than one.

“% of class” is the holding as a proportion of the shares allotted in that class, from the statement of capital in the same filing. It is blank where the filing states no allotment for the class.

Not every UK company has a machine-readable shareholder list. 883 of the 3,467 companies in SIC 09100 do; companies without one are not listed here.

Source: UK Companies House CS01 confirmation statements and the Free Company Data product, parsed by OpenRegistry. Figures are as filed on the date shown against each company and are not restated for later share transfers.