Home / People / Ian Herbert
Portrait of Ian Herbert

Ian Herbert


CMS Cameron McKenna Nabarro Olswang LLP
Cannon Place
78 Cannon Street
United Kingdom
Languages English

Ian Herbert is a partner in CMS’ Oil & Gas Team and advises clients on a wide range of energy related matters with a particular focus on oil and gas infrastructure projects and supply chain contracts, as well as M&A.

Ian was seconded to BP for 15 months to advise on the procurement of four FPSOs and associated infrastructure for the development of major deep-water oil & gas fields offshore Angola, and has advised BP on all its major supply chain contracts in Iraq since 2009. Ian previously spent four years working for a leading offshore engineering & construction contractor, McDermott Inc. 

With more than 450 energy and climate change lawyers, including over 100 partners, the CMS Energy and Climate Change practice is one of the largest of its kind in the world. Led from its centres of excellence such as London and Aberdeen, the practice works across 75 offices globally. Building on 40 years of experience advising on power, oil & gas and renewables through to energy disputes, emerging areas and Energy Transition, CMS is uniquely placed to ensure clients receive advice best suited to their commercial needs and to our collective future.

more less

Relevant experience

Oil & Gas Projects

  • Premier, Repsol, BP, BG, Salamander, Nautical and Baker Hughes on standard form supply chain contracts.
  • Maersk Oil & Gas on bareboat leasing, operations and maintenance and EPCI contracts for the development of the Chissonga field, offshore Angola, involving an FPSO and a tension leg wellhead platform.
  • BP Angola’s programme for the US$25bn development of 4 deep-water oil & gas fields. This involved leading the drafting and negotiation of EPCI contracts for 4 FPSO vessels to be converted from existing tanker hulls and key topsides production equipment, as well as associated subsea equipment, risers, flowlines and umbilicals.
  • BP Iraq on a wide range of contracts which BP is placing as part of the redevelopment of the giant onshore Rumaila field, including high value drilling, workover and wells services agreements, as well as construction projects for power plants, water treatment plants, processing facilities, replacement of pipelines and degassing stations, and the development of secure camp facilities.
  • Talisman-Sinopec on the £1.5bn project for the redevelopment of the Montrose Arbroath platforms in the North Sea, including EPCI contracts for the design, build and installation of a new bridge linked platform, upgrades to the facilities on an existing platform, and the associated subsea systems, umbilicals, flowlines and risers.
  • Ocean Rig on a number of high profile offshore drilling contracts (and associated matters) with E&P companies such as Petrobras, Total, Vanco, Hess and Tullow.

Oil and gas M&A

  • BP on various deals, including the disposal of assets in Egypt, US and Canada to Apache in a US$7billion deal, and multi-billion US$ potential acquisitions in Ghana and Australia.
  • Melrose Resources on the farm-out of an interest in exploration and production acreage offshore France (in the Mediterranean) to Noble, the farm-out of an interest in Block 27, offshore Romania, to Beach Energy, and the farm-in to the Midia and Pelican Blocks, offshore Romania, from Sterling Resources including associated loan arrangements.
  • Dea (previously RWE Dea) on various disposals and acquisitions.

Mining / Power

  • UK Coal plc on its major coal supply agreements, including contracts with Drax, E.ON, SSE and EDF worth more than £1billion in aggregate.
  • SSE on coal purchase agreements.
  • Portucel on a US biomass plant project, including off-take agreements.
more less

Memberships & Roles

  • Committee Member, IBA UK Energy Lawyers
more less


  • University of Surrey, Joint Honours Degree in Russian and Law.
  • College of Law, Legal Practice Course.
more less


Oil & Gas / Ship­ping – Com­mer­cial Court Ex­am­ines Leg­al Ef­fect of “Sub­ject...
In the con­text of a crude oil voy­age charter, the Com­mer­cial Court has provided guid­ance on the leg­al ef­fect of “sub­ject to” pro­vi­sions in con­tracts.  In do­ing so, the Com­mer­cial Court noted that...
Oil & Gas: Hy­dro­car­bon sales - risk of loss of pre-pay­ment and without...
In VTB Com­mod­it­ies Trad­ing DAC v JSC An­ti­p­in­sky Re­finery [2020] EWHC 72 (Comm) the Com­mer­cial Court re­fused to con­tin­ue an or­der for spe­cif­ic per­form­ance re­lat­ing to the de­liv­ery of gas­oil that had been...
Ship­ping & Mari­time
CMS has 74 of­fices in 42 coun­tries across Europe, the Middle East, Rus­sia, China, Hong Kong, North Africa and Lat­in Amer­ica. We are re­cog­nised as a lead­ing law firm both in the UK and glob­ally, de­liv­er­ing...
Oil & Gas: drilling down in­to ter­min­a­tion for force ma­jeure
In Sead­rill Ghana Op­er­a­tions Lim­ited v. Tul­low Ghana Lim­ited [2018] EWHC 1640 (Comm), Tul­low Ghana Lim­ited (“Tul­low”) sought to de­fend its ter­min­a­tion of a con­tract for hire of a drilling rig with...
Oil & Gas: Drilling down in­to ter­min­a­tion for force ma­jeure
In Sead­rill Ghana Op­er­a­tions Lim­ited v. Tul­low Ghana Lim­ited [2018] EWHC 1640 (Comm), Tul­low Ghana Lim­ited (“Tul­low”) sought to de­fend its ter­min­a­tion of a con­tract for hire of a drilling rig with...
Pe­mex makes biggest on­shore find in 15 years
Mex­ic­an state-owned oil com­pany, Pe­mex, an­nounced that it has made its biggest on­shore oil dis­cov­ery in 15 years in the Gulf coast state of Ver­ac­ruz. The dis­cov­ery at the Ixa­chi-1 well holds an ori­gin­al...
Mex­ico: Round 2.1 con­tracts signed, mo­mentum builds up to Round 2.4
Mex­ico’s Na­tion­al Hy­dro­car­bons Com­mis­sion (CNH) this week signed ex­plor­a­tion and ex­trac­tion con­tracts with bid round win­ners from Jun­e's shal­low wa­ter Round 2.1 (see our Law Now here). Round 2.1 was...
Mex­ico: Win­ners of Oil & Gas Li­cens­ing Rounds 2.1 -2.3 An­nounced
The Centro Nacion­al de Hidro­car­bur­os (CNH) has an­nounced the res­ults of Mex­ico’s 5th, 6th and 7th Oil & Gas ex­plor­a­tion Rounds since the re­form of the coun­try’s hy­dro­car­bons in­dustry. The Rounds gen­er­ated...
Oil and Gas: An In­el-UCTA-ble Con­sid­er­a­tion for Ex­clu­sion Clauses
The ar­gu­ments con­cern­ing the ap­plic­ab­il­ity of an ex­clu­sion clause in the face of ex­treme con­duct by the party re­ly­ing on that clause are fa­mil­i­ar to most prac­ti­tion­ers in the oil and gas sec­tor. What...
Mex­ico: Sig­ni­fic­ant Oil Dis­cov­ery In­creases In­dustry Mo­mentum
Mex­ico’s in­creas­ingly luc­rat­ive hy­dro­car­bons in­dustry has gathered mo­mentum through the fifth largest glob­al oil dis­cov­ery since 2012. A joint ven­ture led by Hou­s­ton-based Talos En­ergy made the dis­cov­ery...
Mex­ico fi­nally an­nounces res­ults of deep­wa­ter auc­tions
The res­ults of Round 1.4 and the PE­MEX “Tri­on Round” have def­in­itely shown that the Mex­ic­an oil and gas mar­ket is open for busi­ness with do­mest­ic and for­eign in­vestors flock­ing in to take ad­vant­age...
Tender bases an­nounced for oil and gas Round 2.3 in Mex­ico
The lib­er­al­isa­tion of Mex­ico’s oil and gas mar­ket is con­tinu­ing apace with the blocks to be auc­tioned in Round 2.3, the next stage in the ten­der­ing pro­cess, re­vealed on 15 Novem­ber 2016. Mex­ico’s...