Hi
This question goes to kudaisi and other good people / programmers out there.
Some of ma folks here way get big eye like me ask me say which kain software them day use for oil and gas firm, who get idea abeg lemme know, apart from simulation and modelling, which one again?

Unfortunately, I don't have that information. But I'm quite certain that major oil companies all use Enterprise Resource Planning software (ERP) sha (I know for example that Mobil uses SAP ERP). And I know of one app used to measure fuel levels in oil tankers. To ensure that the driver does no siphon and mix the fuel while on transit. The one i saw was done using and Arduino Nano board with a GSM shield and with a C# back-end in the cloud.

kudaisi:
Unfortunately, I don't have that information. But i'm certain they all use Enterprise Resource Planning software (ERP) sha. And I know of one app used to measure fuel levels in oil tankers. To ensure that the driver does no siphon and mix the fuel while on transit. The one i saw was done using and Arduino Nano board with a GSM shield and with a C# back-end in the cloud.

Always on point ! Baba himself i hail ...ooo

I may not be able to mention them point blank but... Forgive me to just beat the bush...

For Business...
Royal Dutch Shell and its subsidiaries have a massive deployment of Microsoft products.
With massive use of SharePoint and Lync. I must say that, they are ideal for a large company.

For Technical...
They use many proprietary software. Some popular ones includes an array of AutoDesk products. Another used to monitor production and systems parameters is from OSISoft
A lot are unpopular to the average computer user.

There are lots of Embedded systems that are deployed on the field. The company has a globally large and competent IT staff.

Most software are not in-house. Neither are they locally contracted. There is a global standard and continuous efficiency review of their Software infrastructure. Additionally, as one of the frontiers in the Energy industry, the standard and reputation of their contractors matters to them. Likewise Software security.

The company has several thousands of volume licensed Software that is easily accessible to staff... For staff, right from their desk, they request... if approved, it's installed over the company's intranet.

They adopt some of the latest software and tech. But it must first go through some intensive change process that involves lots of stakeholders including Technical Authorities. For global adoption, the stakeholders cut across many different countries and Contractors... And all these have varying opinions. So you see its not so easy to just adopt a software.

They consider seamless integration with existing data and tools. It mustn't fail.

...
I hope this helps.