Professional Summary
Overview
Work History
Education
Skills
Certification
Timeline

Amber Nunez

GM OILFIELD & TRUCKING SERVICES
Odessa,USA
1
Certification
6
years of professional experience

I am a dedicated and experienced administrative assistant with a strong track record of supporting teams through organization, reliability, and attention to detail. I’m Known for managing complex tasks efficiently, maintaining confidentiality, and contributing to smooth office operations. I am also a trusted and hardworking professional who consistently goes above and beyond to ensure success behind the scenes.

Work History

Accounts Receivable Clerk

3 Months
GM OILFIELD & TRUCKING SERVICES | 04.2026 - Current
  • Processed high-volume field service and GPS tickets using Gemini and OpenInvoice systems.
  • Verified, reviewed, and approved tickets for invoicing accuracy and compliance.
  • Managed invoice workflows, streamlining ticket submission, reconciliation, and status tracking for improved accuracy.
  • Collaborated with field personnel and vendors to resolve billing discrepancies, enhancing timely payment processing.
  • Maintained organized documentation and records, supporting operational and financial reporting requirements.

Commingle Administrative Assistant

1 Year 5 Months
ExxonMobil | 11.2024 - 04.2026
  • Assisted UNCON NM Permitting Team in structuring Commingle permits to enhance compliance for ExxonMobil.
  • Distributed notices to lease holders to ensure timely communication.
  • Standard Operating Procedure for Commingle Packets
  • Create spreadsheets for team collaboration
  • Print/Send notices to lease holders
  • Developed spreadsheets to facilitate team collaboration and streamline information sharing.
  • Executed general office tasks to maintain efficient workflow.
  • Drafted Standard Operating Procedure for Commingle Packets to standardize processes and improve efficiency.
  • Managed accounts receivable processes to ensure accurate financial tracking.

Water Logistics Administrative Assistant

4 Months
Oxy | 04.2023 - 08.2023
  • Worked in the Water logistics department with SAP on finding and creating work orders and POs.
  • Worked with Excel, teams, outlook, and one note. Established mileage on work trucks through GPS tracking and managed inventory for each job.
  • Maintained confidentiality of sensitive information during data handling processes. with utmost confidentiality while always maintaining data integrity
  • Managed and updated company databases, ensuring accuracy and completeness of information
  • Assisted in the preparation of financial reports by gathering data, performing calculations, and creating visual presentations
  • Collaborated with cross-functional teams on special projects/initiatives such as process improvement initiatives or system implementations/upgrades
  • Provided administrative support during contract negotiations by preparing necessary documents, tracking revisions, and ensuring compliance with legal requirements

Administrative Assistant

2 Years 5 Months
F.Vuelvas Trucking Inc. | 09.2020 - 02.2023
  • Performed many office skills, in charge of invoices sending and receiving, also handling multi-line phone calls incoming and outgoing. In charge of all emails coming in daily and replying at decent times with correct info.
  • Returned calls to Oil field Companies
  • Organized and processed invoices, emails, mail
  • Handled incoming/outgoing mail
  • QuickBooks
  • General clerical support duties including scheduling, placing orders, filing
  • OpenInvoice
  • Utilized Microsoft Office Suite
  • Developed and maintained filing systems, improving document retrieval speed and accuracy.
  • Managed daily office operations, ensuring efficient workflow and communication among departments.

Education

Diploma - Upper secondary education

Odessa High | Odessa | 12-2013

Skills

Collections
Invoice processing
Payment posting
Data entry
Office administration
Microsoft office
Schedule management
Gemini
Open Invoice
Maintaining records
GPS

Certification

  • Life Insurance License October 2025 to July 2027
  • Driver's License

Timeline

Accounts Receivable Clerk

GM OILFIELD & TRUCKING SERVICES
04.2026 - CurrentRead More

Commingle Administrative Assistant

ExxonMobil
11.2024 - 04.2026Read More

Water Logistics Administrative Assistant

Oxy
04.2023 - 08.2023Read More

Administrative Assistant

F.Vuelvas Trucking Inc.
09.2020 - 02.2023Read More

Odessa High

Diploma from Upper secondary education
Read More
Amber Nunez